APA (7th ed.) Citation

Boehm, R. G. (2005). World geography. Glencoe, McGraw-Hill.

Chicago Style (17th ed.) Citation

Boehm, Richard G. World Geography. New York, NY [u.a.]: Glencoe, McGraw-Hill, 2005.

MLA (9th ed.) Citation

Boehm, Richard G. World Geography. Glencoe, McGraw-Hill, 2005.