Cita APA

Bates, R. L., Sweet, W. C., & Utgard, R. O. (1973). Geology: An introduction (2a. ed.). Lexington, Mass.: D.C. Heath and Co..

Citación estilo Chicago

Bates, Robert L., Walter C. Sweet, y Russell O. Utgard. Geology: An Introduction. 2a. ed. Lexington, Mass.: D.C. Heath and Co., 1973.

Cita MLA

Bates, Robert L., Walter C. Sweet, y Russell O. Utgard. Geology: An Introduction. 2a. ed. Lexington, Mass.: D.C. Heath and Co., 1973.