APA (7th ed.) Citation

Brun, H. (1996). The world today: Current problems and their origins (2nd ed.). AMSCO School Publications.

Chicago Style (17th ed.) Citation

Brun, Henry. The World Today: Current Problems and Their Origins. 2nd ed. New York, New York: AMSCO School Publications, 1996.

MLA (9th ed.) Citation

Brun, Henry. The World Today: Current Problems and Their Origins. 2nd ed. AMSCO School Publications, 1996.