APA (7th ed.) Citation

De Leeuw, K. (1966). Calculus. Harcourt, Brace and World.

Chicago Style (17th ed.) Citation

De Leeuw, Karel. Calculus. New York: Harcourt, Brace and World, 1966.

MLA (9th ed.) Citation

De Leeuw, Karel. Calculus. Harcourt, Brace and World, 1966.

Warning: These citations may not always be 100% accurate.