1
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1983
Washington, D.C. : Smithsonian Institution Press, 1983
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Book
2
by Duckworth, W. Donald
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
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Book
3
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Government Document
Book Chapter
4
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Book Chapter
5
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1983
Washington, D.C. : Smithsonian Institution Press, 1983
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Book
6
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press : [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971
Washington, D.C. : Smithsonian Institution Press : [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971
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Government Document
Book
7
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Government Document
Book Chapter
8
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Book Chapter
9
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Book Chapter
10
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Book Chapter
11
by Duckworth, W. Donald
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974
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Government Document
Book
12
by Duckworth, W. Donald
Washington : Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969
Washington : Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Book
13
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1973
Washington, D.C. : Smithsonian Institution Press, 1973
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Electronic
Book
14
by Duckworth, W. Donald
Washington, [D.C.] : Smithsonian Institution Press, 1970
Washington, [D.C.] : Smithsonian Institution Press, 1970
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Electronic
Book
15
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1971
Washington, D.C. : Smithsonian Institution Press, 1971
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Electronic
Book
16
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1978
Washington, D.C. : Smithsonian Institution Press, 1978
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Government Document
Electronic
Book
17
by Duckworth, W. Donald
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1971
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1971
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Government Document
Book
18
by Duckworth, W. Donald
Washington : Smithsonian Institution Press, 1978
Washington : Smithsonian Institution Press, 1978
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Government Document
Book
19
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1974
Washington, D.C. : Smithsonian Institution Press, 1974
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Electronic
Book
20
by Duckworth, W. Donald
Washington, D.C. : Smithsonian Institution Press, 1973
Washington, D.C. : Smithsonian Institution Press, 1973
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
Government Document
Electronic
Book