APA (7th ed.) Citation

Reys, R. E. (2015). Helping children learn mathematics (11th edition.). Wiley.

Chicago Style (17th ed.) Citation

Reys, Robert E. Helping Children Learn Mathematics. 11th edition. Hoboken, NJ: Wiley, 2015.

MLA (9th ed.) Citation

Reys, Robert E. Helping Children Learn Mathematics. 11th edition. Wiley, 2015.

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