Cita APA

Estados Unidos. Department of Agriculture, & Estados Unidos. Department of Agriculture. (1980). Cutting energy cost: The 1980 yearbook of agriculture. Washington: U.S. Government Printing Office.

Citación estilo Chicago

Estados Unidos. Department of Agriculture, y Estados Unidos. Department of Agriculture. Cutting Energy Cost: The 1980 Yearbook of Agriculture. Washington: U.S. Government Printing Office, 1980.

Cita MLA

Estados Unidos. Department of Agriculture, y Estados Unidos. Department of Agriculture. Cutting Energy Cost: The 1980 Yearbook of Agriculture. Washington: U.S. Government Printing Office, 1980.