APA (7th ed.) Citation

deVries, H. A., & Hales, D. R. (1987). Fitness after 50. Charles Scribner's Sons.

Chicago Style (17th ed.) Citation

deVries, Herbert A., and Diane R. Hales. Fitness After 50. New York: Charles Scribner's Sons, 1987.

MLA (9th ed.) Citation

deVries, Herbert A., and Diane R. Hales. Fitness After 50. Charles Scribner's Sons, 1987.

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