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1
Wisconsin's 1968 timber resource--a perspective
由 Spencer, John S., Thorne, Harry W.
[St. Paul] North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1972

Government Document 图书
2
Timber resource of Missouri's eastern Ozarks '72 /
由 Essex, Burton L., Spencer, John S.
St. Paul : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1974

Government Document 图书
3
The growing timber resource of Michigan, 1966
由 Chase, Clarence D., Pfeifer, Ray E., Spencer, John S.
[St. Paul, Minn.] North Central Forest Experiment Station, 1970

Government Document 图书
4
Indiana's timber /
由 Spencer, John S.
St. Paul, Minn. : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969

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5
Timber resource of Missouri's Riverborder Region '72 /
由 Spencer, John S., Ostrom, Arnold J.
St. Paul : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975

Government Document 图书
6
The fourth Minnesota forest inventory : timber volumes and projections of timber supply /
由 Spencer, John S.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1982

Government Document 图书
7
Michigan forest statistics, 1993 /
由 Leatherberry, Earl C.
St. Paul, Minn. (1992 Folwell Ave., St. Paul 55108) : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1996

Government Document 图书
8
An analysis of Iowa's forest resources, 1990 /
由 Leatherberry, Earl C.
St. Paul, Minn. (1992 Folwell Ave., St. Paul 55108) : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1993

Government Document 图书
9
Timber resource of Michigan's western upper peninsula, 1980 /
由 Spencer, John S.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1983

Government Document 图书
10
Kansas forest statistics, 1981 /
由 Raile, Gerhard K.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1984

Government Document 图书
11
Timber resource of Wisconsin's Southeast Survey Unit, 1983 /
由 Spencer, John S.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1985

Government Document 图书
12
A method for estimating operability and location of the timber resource /
由 Spencer, John S.
[Saint Paul, Minn.] : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1986

Government Document 图书
13
Forest management opportunities for Michigan, 1981-1990 /
由 Smith, W. Brad
[Saint Paul, Minn.] : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1986

Government Document 图书
14
Michigan's fourth forest inventory : timber volumes and projections of timber supply /
由 Spencer, John S.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1984

Government Document 图书
15
The fourth Minnesota forest inventory : timber volumes and projections of timber supply /
由 Spencer, John S.
St. Paul, Minn. : U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1982

Government Document 图书
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