Cita APA (7a ed.)

Whitaker, J. R. n. 1., & Ackerman, E. A. (1951). American resources: Their management and conservation. Harcourt, Brace and Company.

Cita Chicago Style (17a ed.)

Whitaker, J. Russell n. 1900., y Edward A. Ackerman. American Resources: Their Management and Conservation. New York: Harcourt, Brace and Company, 1951.

Cita MLA (9a ed.)

Whitaker, J. Russell n. 1900., y Edward A. Ackerman. American Resources: Their Management and Conservation. Harcourt, Brace and Company, 1951.