一般注記Cover title
"In cooperation with Iowa Agriculture and Home Ecnomics Experiment Station; Cooperative Extension Service; Iowa State University; Department of Soil Conservation, State of Iowa."
Physical description for original version: vii, 136 p., 66 folded leaves 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, 1984
SUPTDOC番号: A 57.38: Au 2
GPO管理番号: 102-B-15