Fox, E. L., Mathews, D. K., & Close, N. A. (1974). Interval training : conditioning for sports and general fitness / (by) Edward L. Fox, Donald K. Mathews ; illustrated by Nancy Allison Close: Conditioning for sports and general fitness. Saunders.
Chicago Style (17th ed.) CitationFox, Edward L., Donald K. Mathews, and Nancy Allison Close. Interval Training : Conditioning for Sports and General Fitness / (by) Edward L. Fox, Donald K. Mathews ; Illustrated by Nancy Allison Close: Conditioning for Sports and General Fitness. Philadelphia ; London (etc.): Saunders, 1974.
MLA (9th ed.) CitationFox, Edward L., et al. Interval Training : Conditioning for Sports and General Fitness / (by) Edward L. Fox, Donald K. Mathews ; Illustrated by Nancy Allison Close: Conditioning for Sports and General Fitness. Saunders, 1974.