APA (7th ed.) Citation

Prindle, A. (1982). Math the easy way: Your key to learning. Barron's Educational Series.

Chicago Style (17th ed.) Citation

Prindle, Anthony. Math the Easy Way: Your Key to Learning. Woodbury, N.Y.: Barron's Educational Series, 1982.

MLA (9th ed.) Citation

Prindle, Anthony. Math the Easy Way: Your Key to Learning. Barron's Educational Series, 1982.