APA (7th ed.) Citation

Shaffer, E. H. (1968). The oil import program of the United States: An evaluation. Praeger.

Chicago Style (17th ed.) Citation

Shaffer, Edward H. The Oil Import Program of the United States: An Evaluation. New York <<[u.a.]>>: Praeger, 1968.

MLA (9th ed.) Citation

Shaffer, Edward H. The Oil Import Program of the United States: An Evaluation. Praeger, 1968.