一般注記Cover title
Distributed to depository libraries in microfiche
"December 1989"--P. i
"Research supported through USDA cooperative agreement No. 58-3J23-4-0028"--P. i
Physical description for original version: iii, 47 p. : 28 cm
書誌注記Includes bibliographical references (p. 35-38)
原資料等に関する注記原資料の出版事項: Washington, DC : U.S. Dept. of Agriculture, Economic Research Service, [1989]
SUPTDOC番号: A 1.36: 1775
GPO管理番号: 0016 (MF)