一般注記Cover title
Distributed to depository libraries in microfiche
Shipping list no.: 93-0561-M
"November 1969."
Physical description for original version: iii, 40 p.
書誌注記Includes bibliographical references (p. 27-29)
原資料等に関する注記原資料の出版事項: [Washington, D.C.?] : Water Resources Branch, Natural Resource Economics Division, Economic Research Service, U.S. Dept. of Agriculture, [1969]
SUPTDOC番号: A 57.2: IR 7/21
GPO管理番号: 0120 (MF)