APA (7th ed.) Citation

Guernsey, J. L., & Doerr, A. H. (1964). Physical geography. Barron's Educational Series inc..

Chicago Style (17th ed.) Citation

Guernsey, James Lee, and Arthur H. Doerr. Physical Geography. Great Neck, N.Y.: Barron's Educational Series inc., 1964.

MLA (8th ed.) Citation

Guernsey, James Lee, and Arthur H. Doerr. Physical Geography. Barron's Educational Series inc., 1964.