1
by Ernst, Richard L.
Broomall, Pa. : Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1979
Broomall, Pa. : Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1979
Government Document
Book
2
by Ernst, Richard L.
[Place of publication not identified] : [publisher not identified], 1981
[Place of publication not identified] : [publisher not identified], 1981
Thesis
Book
3
by Ernst, Richard L.
[Washington, D.C.] : U.S. Dept. of Agriculture, Forest Service, 1985
[Washington, D.C.] : U.S. Dept. of Agriculture, Forest Service, 1985
Government Document
Book
4
5
by Marquis, David A.
Radnor, Pa. (100 Matsonford Road, Radnor 19087-4585) : U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1992
Other Authors:
“...Ernst, Richard L....”Radnor, Pa. (100 Matsonford Road, Radnor 19087-4585) : U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1992
Government Document
Book
6
by Schreuder, Hans T.
Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004
Other Authors:
“...Ernst, Richard L....”Fort Collins, CO : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2004
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Government Document
Book
7
by Marquis, David A.
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Station, 1984
Other Authors:
“...Ernst, Richard L....”Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Station, 1984
Book
8
by Marquis, David A.
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Station, 1984
Other Authors:
“...Ernst, Richard L....”Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Station, 1984
Government Document
Book