一般注記Cover title
Distributed to depository libraries in microfiche
"September 1985"--P. [2] of cover
Physical description for original version: vi, 125 p. : 28 cm
書誌注記Includes bibliograhical references
原資料等に関する注記原資料の出版事項: Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service, Natural Resource Economics Division, 1985
SUPTDOC番号: A 93.44: AGES 850725
GPO管理番号: 42-W-1 (microfiche)