National handbook of conservation practices.
APA Citation
United States. Soil Conservation Service. (1978). National handbook of conservation practices. [Washington]: Dept. of Agriculture, Soil Conservation Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off..
MLA Citation
United States. Soil Conservation Service. National Handbook of Conservation Practices. [Washington]: Dept. of Agriculture, Soil Conservation Service : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978.
Warning: These citations may not always be complete (especially for serials).