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.
Atenció: Aquestes cites poden no estar 100% correctes.