APA (7th ed.) Citation

Engler, R. (1961). The politics of oil ; a study of private power and democratic directions. Macmillan.

Chicago Style (17th ed.) Citation

Engler, Robert. The Politics of Oil ; a Study of Private Power and Democratic Directions. New York: Macmillan, 1961.

MLA (9th ed.) Citation

Engler, Robert. The Politics of Oil ; a Study of Private Power and Democratic Directions. Macmillan, 1961.