Holmes, B. H. (1979). History of federal water resources programs and policies, 1961-70. Washington, D.C: U.S. Department of Agriculture, Economics, Statistics and Cooperatives Service.
Παραπομπή Chicago StyleHolmes, Beatrice Hort. History of Federal Water Resources Programs and Policies, 1961-70. Washington, D.C: U.S. Department of Agriculture, Economics, Statistics and Cooperatives Service, 1979.
Παραπομπή MLAHolmes, Beatrice Hort. History of Federal Water Resources Programs and Policies, 1961-70. Washington, D.C: U.S. Department of Agriculture, Economics, Statistics and Cooperatives Service, 1979.
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