Citazione Stile APA (7a Edizione)

Kingston, P. (1969). Activity games: For playground and classroom. (2nd ed.). University of London.

Citazione stile Chigago Style (17a edizione)

Kingston, P.M. Activity Games: For Playground and Classroom. 2nd ed. London: University of London, 1969.

Citatione MLA (9a ed.)

Kingston, P.M. Activity Games: For Playground and Classroom. 2nd ed. University of London, 1969.