Murch, B. W. (1997). Dangerous Barth: An introduction to geologic. John Wiley.
Cita Chicago (17th ed.)Murch, Barbara W. Dangerous Barth: An Introduction to Geologic. New York: John Wiley, 1997.
Cita MLA (9th ed.)Murch, Barbara W. Dangerous Barth: An Introduction to Geologic. John Wiley, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.