APA (7th ed.) Citation

Hoffer, R. L. (1995). Physical geology. Springhouse Corp.

Chicago Style (17th ed.) Citation

Hoffer, Robin L. Physical Geology. Springhouse, Pa: Springhouse Corp, 1995.

MLA (9th ed.) Citation

Hoffer, Robin L. Physical Geology. Springhouse Corp, 1995.

Warning: These citations may not always be 100% accurate.