[Washington] : U.S. Soil Conservation Service : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1967
Physical Details
i, 124 pages : illustrations, maps (some folded color) ; 28 cm
OCLC
ocm01378781
Cover title.
Prepared by U.S. Dept. of Agriculture Soil Conservation Service and Forest Service in cooperation with University of California Agricultural Experiment Station.