APA (7th ed.) Citation

Loken, N. C., & Willoughby, R. J. (1967). Complete book of gymnastics (2d ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Loken, Newton C., and Robert J. Willoughby. Complete Book of Gymnastics. 2d ed. Englewood Cliffs, N.J: Prentice-Hall, 1967.

MLA (9th ed.) Citation

Loken, Newton C., and Robert J. Willoughby. Complete Book of Gymnastics. 2d ed. Prentice-Hall, 1967.