APA (7th ed.) Citation

Boehm, R. G., & Swanson, J. L. (1989). World geography: California G128 .B. Glencoe Publishing.

Chicago Style (17th ed.) Citation

Boehm, Richard G., and James L. Swanson. World Geography: California G128 .B. New York: Glencoe Publishing, 1989.

MLA (9th ed.) Citation

Boehm, Richard G., and James L. Swanson. World Geography: California G128 .B. Glencoe Publishing, 1989.