Cita APA

Mears, B. 1., & Mears, B. 1. (1970). The changing earth: An introductory geology. New York, New York: Van Nostrand Reinhold.

Citación estilo Chicago

Mears, Brainerd 1921-, y Brainerd 1921- Mears. The Changing Earth: An Introductory Geology. New York, New York: Van Nostrand Reinhold, 1970.

Cita MLA

Mears, Brainerd 1921-, y Brainerd 1921- Mears. The Changing Earth: An Introductory Geology. New York, New York: Van Nostrand Reinhold, 1970.