Cita APA

Dupree, W. G. (1972). United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior.

Citación estilo Chicago

Dupree, Walter G. United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior, 1972.

Cita MLA

Dupree, Walter G. United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior, 1972.

Precaución: Estas citas no son 100% exactas.