APA (7th ed.) Citation

DeVries, H. A., & Hales, D. (1982). Fitness after 50. Scribner.

Chicago Style (17th ed.) Citation

DeVries, Herbert A., and Dianne Hales. Fitness After 50. New York: Scribner, 1982.

MLA (9th ed.) Citation

DeVries, Herbert A., and Dianne Hales. Fitness After 50. Scribner, 1982.

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