Citazione Stile APA (7a Edizione)

Burns, R. B. (2000). Introduction to research methods (4th ed.). Sage.

Citazione stile Chigago Style (17a edizione)

Burns, Robert B. Introduction to Research Methods. 4th ed. London: Sage, 2000.

Citatione MLA (9a ed.)

Burns, Robert B. Introduction to Research Methods. 4th ed. Sage, 2000.