Cita APA (7th ed.)

Fields, T., & Cotton, B. (2012). Social game design: Monetization methods and mechanics. Morgan Kaufmann.

Cita Chicago (17th ed.)

Fields, Tim, i Brandon Cotton. Social Game Design: Monetization Methods and Mechanics. Waltham, Mass: Morgan Kaufmann, 2012.

Cita MLA (9th ed.)

Fields, Tim, i Brandon Cotton. Social Game Design: Monetization Methods and Mechanics. Morgan Kaufmann, 2012.