Cita APA

Ramsey, W. L., & Burckley, R. A. (1965). Modern earth science. New York: Holt, Rinehart and Winston.

Citación estilo Chicago

Ramsey, William L., y Raymond A. Burckley. Modern Earth Science. New York: Holt, Rinehart and Winston, 1965.

Cita MLA

Ramsey, William L., y Raymond A. Burckley. Modern Earth Science. New York: Holt, Rinehart and Winston, 1965.