一般注記Cover title
Distributed to depository libraries in microfiche
"February 1991"--P. i
Physical description for original version: iv, 43 p. : 28 cm
書誌注記Includes bibliographical references
原資料等に関する注記原資料の出版事項: Washington, DC (1301 New York Ave., NW, Washington 20005-4788) : U.S. Dept. of Agriculture, Economic Research Service, Resources and Technology Division, [1991]
SUPTDOC番号: A 93.44: AGES 91-10
GPO管理番号: 42-W-1 (MF)