Citazione Stile APA (7a Edizione)

Clark, R. C. [. C. (2006). Index card games for esl (Third edition.). Pro Lingua Associates.

Citazione stile Chigago Style (17a edizione)

Clark, Raymond C. [ Compiler]. Index Card Games for Esl. Third edition. USA: Pro Lingua Associates, 2006.

Citatione MLA (9a ed.)

Clark, Raymond C. [ Compiler]. Index Card Games for Esl. Third edition. Pro Lingua Associates, 2006.