United States. Agricultural Stabilization and Conservation Service. (1981). National summary evaluation of the Agricultural Conservation Program: Phase I. U.S. Dept. of Agriculture, Agricultural Stabilization and Conservation Service.
Chicago Style (17th ed.) CitationUnited States. Agricultural Stabilization and Conservation Service. National Summary Evaluation of the Agricultural Conservation Program: Phase I. [Washington, D.C.]: U.S. Dept. of Agriculture, Agricultural Stabilization and Conservation Service, 1981.
MLA (9th ed.) CitationUnited States. Agricultural Stabilization and Conservation Service. National Summary Evaluation of the Agricultural Conservation Program: Phase I. U.S. Dept. of Agriculture, Agricultural Stabilization and Conservation Service, 1981.