一般注記Distributed to depository libraries in microfiche
"September 1989"--P. iii
Physical description for original version: iv, 10 p. ; 28 cm
書誌注記Includes bibliographical references (p. 9-10)
原資料等に関する注記原資料の出版事項: Washington, DC ; Rockville, MD : U.S. Dept. of Agriculture, Economic Research Service, Resources and Technology Division : ERS-NASS [distributor, 1989]
SUPTDOC番号: A 93.44: AGES 89-35
GPO管理番号: 0042-W-01 (MF)