Cita APA

Pettijohn, F. J. (2004). Sedimentary rocks (3rd ed.). CBS Publishers.

Citación estilo Chicago

Pettijohn, F J. Sedimentary Rocks. 3rd ed. New Delhi: CBS Publishers, 2004.

Cita MLA

Pettijohn, F J. Sedimentary Rocks. 3rd ed. CBS Publishers, 2004.