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1.

雑誌
雑誌
1. Agricultural economics research : a journal of the United States Department of Agriculture
United States. Dept. of Agriculture
出版情報: Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Agricultural Economics , Washington, D.C. : For sale by the Supt. of Docs., U.S. G.P.O., 1949-1987
巻次(年次): Vol. 1, no. 1 (Jan. 1949)-v. 39, no. 1 (winter 1987)
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2.

雑誌
雑誌
2. Journal of agricultural research
Department of Agriculture
出版情報: Washington, D.C. : U.S. G.P.O, 1913-1949
巻次(年次): Vol. 1 (Oct. 1913)-v. 78 (June 1949)
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3.

雑誌
雑誌
3. Experiment Station record
U.S. Department of Agriculture
出版情報: Washington : Government Printing Office, 1889-
巻次(年次): 1 (1889)-
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