Cita APA (7th ed.)

United States. Department of Agriculture & Hayes, J. (1980). Cutting Energy Costs. U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O..

Cita Chicago (17th ed.)

United States. Department of Agriculture i Jack Hayes. Cutting Energy Costs. [Washington, D.C.]: U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., 1980.

Cita MLA (9th ed.)

United States. Department of Agriculture i Jack Hayes. Cutting Energy Costs. U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., 1980.