一般注記Cover title
"Issued September 1983"--P. iii
Physical description for original version: [viii], 93 p., 169 folded p. of plates : 28 cm
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, Soil Conservation Service in cooperation with the Pennsylvania State University, College of Agriculture and the Pennsylvania Dept. of Environmental Resources, State Conservation Commission, 1983
SUPTDOC番号: A 57.38: G 83/7
GPO管理番号: 102-B-38