APA (7th ed.) Citation

Zumberge, J. H., & Nelson, C. A. (1976). Elements of physical geology. National Book Store.

Chicago Style (17th ed.) Citation

Zumberge, James Herbert, and Clemens Arvid Nelson. Elements of Physical Geology. Metro Manila: National Book Store, 1976.

MLA (9th ed.) Citation

Zumberge, James Herbert, and Clemens Arvid Nelson. Elements of Physical Geology. National Book Store, 1976.