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1
Rockville, Md., Environmental Science Information Center, 1971

Book
4
by Baade, Patricia
New York : Platt's Oilgram Price Service, McGraw-Hill, 1975

Book
6
Washington [U.S. Govt. Print. Off.] 1963

Book
7
Bethlehem, Pa. : College Placement Council, 1976
Rev. ed.

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8
Rockville, Md., U.S. National Oceanographic Data Center, 1970

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9

Journal
10
Washington, United States Naval Oceanographic Office, 1967
Rev.

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11
Springfield, Va., NTIS, 1974

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12
by Qutub, Musa Y.
[Chicago, Mid-continent Scientific, 1973

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13
by Whitaker, Christopher Robert
Norwich : Geo Abstracts Ltd, 1973

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14

Government Document Journal
15
[s.l. : s.n.], 1974

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16
by O'Callaghan, Timothy C.
Falls Church, Va. : General Pub. Services, 1975

Book
17
Ottawa : Energy, Mines and Resources Canada, Earth Physics Branch : [distributed by] Information Canada, 1975

Book
18
by Hamel, J. V.
Harrisburg : Pennsylvania Dept. of Highways, Bureau of Materials, Testing and Research, 1969

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19
Alexandria, Va.; [Reproduced by National Technical Information Service, Springfield, Va.] 1973

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20
by Edwards, Norman T.
Washington, U.S. Naval Oceanographic Office, 1969

Book