APA (7th ed.) Citation

Resnick, L. B., & Ford, W. W. (1981). The psychology of mathematics for instruction. L. Erlbaum Associates.

Chicago Style (17th ed.) Citation

Resnick, Lauren B., and Wendy W. Ford. The Psychology of Mathematics for Instruction. Hillsdale, N.J.: L. Erlbaum Associates, 1981.

MLA (9th ed.) Citation

Resnick, Lauren B., and Wendy W. Ford. The Psychology of Mathematics for Instruction. L. Erlbaum Associates, 1981.