APA-referens (7:e uppl.)

Bernard, R. (2013). Social research methods (2nd.). Sage Publication.

Chicago-referens (17:e uppl.)

Bernard, Russell. Social Research Methods. 2nd. London: Sage Publication, 2013.

MLA-referens (9:e uppl.)

Bernard, Russell. Social Research Methods. 2nd. Sage Publication, 2013.