APA (7th ed.) Citation

Klose, O. M. (1966). The number systems and operations of arithmetic. Pergamon Press.

Chicago Style (17th ed.) Citation

Klose, Orval M. The Number Systems and Operations of Arithmetic. Oxford: Pergamon Press, 1966.

MLA (9th ed.) Citation

Klose, Orval M. The Number Systems and Operations of Arithmetic. Pergamon Press, 1966.