一般注記Cover title
Distributed to depository libraries in microfiche
"December 1989"--P. i
Errata slip inserted
Physical description for original version: ii, 68 p. : 28 cm
書誌注記Includes bibliographical references (p. 31-32)
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 : ERS-NASS [distributor, 1990]
SUPTDOC番号: A 1.36: 1776
GPO管理番号: 16 (MF)