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..
Chicago-Zitierstil (17. Ausg.)United States. Department of Agriculture und 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.
MLA-Zitierstil (9. Ausg.)United States. Department of Agriculture und Jack Hayes. Cutting Energy Costs. U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.