Citazione Stile APA (7a Edizione)

Mason, B. S., & Mitchell, E. D. (1935). Active games and contests. ronald Press.

Citazione stile Chigago Style (17a edizione)

Mason, Bernard Sterling, e Elmer D. Mitchell. Active Games and Contests. New York: ronald Press, 1935.

Citatione MLA (9a ed.)

Mason, Bernard Sterling, e Elmer D. Mitchell. Active Games and Contests. ronald Press, 1935.