APA (7th ed.) Citation

Helmy, I., & Crandall, R. (1979). Leisure: A psychological approach. Hwong Pub. Co..

Chicago Style (17th ed.) Citation

Helmy, Ibrahim, and Rick Crandall. Leisure: A Psychological Approach. Los Alamitos, CA: Hwong Pub. Co., 1979.

MLA (9th ed.) Citation

Helmy, Ibrahim, and Rick Crandall. Leisure: A Psychological Approach. Hwong Pub. Co., 1979.