APA (7th ed.) Citation

Lay, L. C. (1966). The study of arithmetic. Macmillan.

Chicago Style (17th ed.) Citation

Lay, L. Clark. The Study of Arithmetic. New York: Macmillan, 1966.

MLA (9th ed.) Citation

Lay, L. Clark. The Study of Arithmetic. Macmillan, 1966.

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