Cita APA

Press, F., & Siever, R. (2001). Earth issues reader for understanding earth: Frank Press, Raymond Siever (3rd ed.). W.H.Freeman and Company.

Citación estilo Chicago

Press, Frank, and Raymond Siever. Earth Issues Reader for Understanding Earth: Frank Press, Raymond Siever. 3rd ed. New York: W.H.Freeman and Company, 2001.

Cita MLA

Press, Frank, and Raymond Siever. Earth Issues Reader for Understanding Earth: Frank Press, Raymond Siever. 3rd ed. W.H.Freeman and Company, 2001.