APA (7th ed.) Citation

Musker, F. F., Casady, D. R., & Irwin, L. W. (1968). A guide to gymnastics. Macmillan.

Chicago Style (17th ed.) Citation

Musker, Frank F., Donald R. Casady, and L. W. Irwin. A Guide to Gymnastics. New York: Macmillan, 1968.

MLA (9th ed.) Citation

Musker, Frank F., et al. A Guide to Gymnastics. Macmillan, 1968.