Cita APA (7a ed.)

Mason, B. S., & Mitchell, E. D. (1945). Active games and contests ([9th printing].). Barnes.

Cita Chicago Style (17a ed.)

Mason, Bernard S., y Elmer D. Mitchell. Active Games and Contests. [9th printing]. New York: Barnes, 1945.

Cita MLA (9a ed.)

Mason, Bernard S., y Elmer D. Mitchell. Active Games and Contests. [9th printing]. Barnes, 1945.