APA (7th ed.) Citation

Tyner, W. E. (1981). United States energy picture, 1981 to 2000. Cooperative Extension Service, Purdue University.

Chicago Style (17th ed.) Citation

Tyner, Wallace E. United States Energy Picture, 1981 to 2000. West Lafayette, Ind.: Cooperative Extension Service, Purdue University, 1981.

MLA (9th ed.) Citation

Tyner, Wallace E. United States Energy Picture, 1981 to 2000. Cooperative Extension Service, Purdue University, 1981.