Παραπομπή APA

Russell K Schutt. (2009). Investigating the social world: The process and practice of research (6.). Pine forge Press.

Παραπομπή Chicago Style

Russell K Schutt. Investigating the Social World: The Process and Practice of Research. 6. Thousand Oaks: Pine forge Press, 2009.

Παραπομπή MLA

Russell K Schutt. Investigating the Social World: The Process and Practice of Research. 6. Pine forge Press, 2009.