APA (7th ed.) Citation

Petersen, M. S. (1980). Historical geology of North America (2nd ed.). W. C. Brown Co.

Chicago Style (17th ed.) Citation

Petersen, Morris S. Historical Geology of North America. 2nd ed. Dubuque, Iowa: W. C. Brown Co, 1980.

MLA (9th ed.) Citation

Petersen, Morris S. Historical Geology of North America. 2nd ed. W. C. Brown Co, 1980.