APA (7th ed.) Citation

Brainerd, C. J. (1979). The origins of the number concept. Praeger.

Chicago Style (17th ed.) Citation

Brainerd, Charles J. The Origins of the Number Concept. New York: Praeger, 1979.

MLA (9th ed.) Citation

Brainerd, Charles J. The Origins of the Number Concept. Praeger, 1979.