APA (7th ed.) Zitazioa

Somekh Bridget & Lewin Cathy. (2005). Research Methods in the Social Science. SAGE.

Chicago Style (17th ed.) Zitazioa

Somekh Bridget eta Lewin Cathy. Research Methods in the Social Science. London: SAGE, 2005.

MLA (9th ed.) Zitazioa

Somekh Bridget eta Lewin Cathy. Research Methods in the Social Science. SAGE, 2005.