APA (7th ed.) Citation

Marks, J. L., Purdy, C. R., & Kinney, L. (1965). Teaching elementary school mathematics for understanding. McGraw-Hill.

Chicago Style (17th ed.) Citation

Marks, John L., C. Richard Purdy, and Lucien Kinney. Teaching Elementary School Mathematics for Understanding. McGraw-Hill, 1965.

MLA (8th ed.) Citation

Marks, John L., et al. Teaching Elementary School Mathematics for Understanding. McGraw-Hill, 1965.