Cita APA (7a ed.)

Watson, T., & Green, M. (1991). Cooperative games: Games to build trust and friendship, and to break the ice. Printforce.

Cita Chicago Style (17a ed.)

Watson, Terry, y Martin Green. Cooperative Games: Games to Build Trust and Friendship, and to Break the Ice. Sutton: Printforce, 1991.

Cita MLA (9a ed.)

Watson, Terry, y Martin Green. Cooperative Games: Games to Build Trust and Friendship, and to Break the Ice. Printforce, 1991.