Cita APA

Murck, B. W., & Skinner, B. J. (1999). Geology today: Understanding our planet. John Wiley.

Chicago Edition Citation

Murck, Barbara W., i Brian J. Skinner. Geology Today: Understanding Our Planet. New York: John Wiley, 1999.

Cita MLA

Murck, Barbara W., i Brian J. Skinner. Geology Today: Understanding Our Planet. John Wiley, 1999.