APA aipamena

Barbour, R. S., & Flick, U. (2007). Doing focus groups. SAGE.

Chicago Style aipamena

Barbour, Rosaline S., and Uwe Flick. Doing Focus Groups. Los Angeles: SAGE, 2007.

MLA aipamena

Barbour, Rosaline S., and Uwe Flick. Doing Focus Groups. SAGE, 2007.