一般注記Distributed to depository libraries in microfiche
"April 1991"--P. iii
Physical description for original version: iv, 48 p. : 28 cm
書誌注記Includes bibliographical references (p. 44-47)
原資料等に関する注記原資料の出版事項: Washington, D.C. ; Rockville, MD : U.S. Dept. of Agriculture, Economic Research Service, Agriculture and Trade Analysis Division : ERS-NASS, [distributor, 1991]
SUPTDOC番号: A 93.44: AGES 91-22
GPO管理番号: 0042-W-01 (MF)