Cita APA (7th ed.)

Duke, R. D. (1974). Gaming: The future's language. Sage Publications, Inc.

Cita Chicago (17th ed.)

Duke, Richard D. Gaming: The Future's Language. New York: Sage Publications, Inc, 1974.

Cita MLA (9th ed.)

Duke, Richard D. Gaming: The Future's Language. Sage Publications, Inc, 1974.