APA (7th ed.) Citation

Donnelly, R. J., Helms, W. G., & Mitchell, E. D. (1958). Active games and contests (2nd ed.). Ronald Press Co..

Chicago Style (17th ed.) Citation

Donnelly, Richard Joseph, William G. Helms, and Elmer Dayton Mitchell. Active Games and Contests. 2nd ed. New York: Ronald Press Co., 1958.

MLA (9th ed.) Citation

Donnelly, Richard Joseph, et al. Active Games and Contests. 2nd ed. Ronald Press Co., 1958.