Dupree, W. G. (1972). United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior.
Citación estilo ChicagoDupree, Walter G. United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior, 1972.
Cita MLADupree, Walter G. United States Energy Through the Year 2000. Washington: U.S. Department of teh Interior, 1972.
Precaución: Estas citas no son 100% exactas.