APA Citation

Lay, L. C., & Lay, L. C. (1961). Arithmetic: An introduction to matematics. --. New York, New York: Macmillan.

Chicago Style Citation

Lay, L. Clark, and L. Clark Lay. Arithmetic: An Introduction to Matematics. --. New York, New York: Macmillan, 1961.

MLA Citation

Lay, L. Clark, and L. Clark Lay. Arithmetic: An Introduction to Matematics. --. New York, New York: Macmillan, 1961.

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