一般注記Cover title
Distributed to depository libraries in microfiche
"December 1990"--1st prelim. p
Physical description for original version: vi, 81 p. : 23 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 : U.S. Dept. of Agriculture, Economic Research Service, Agriculture and Rural Economy Division, [1990]
SUPTDOC番号: A 93.44: AGES 90-69
GPO管理番号: 42-W-1 (MF)