APA (7th ed.) Citation

Cantor, N. F., & Berner, S. (1970). Problems in European history. T. Y. Crowell.

Chicago Style (17th ed.) Citation

Cantor, Norman F., and Samuel Berner. Problems in European History. New York: T. Y. Crowell, 1970.

MLA (9th ed.) Citation

Cantor, Norman F., and Samuel Berner. Problems in European History. T. Y. Crowell, 1970.