Citazione Stile APA (7a Edizione)

Barbour, R. S., & Flick, U. (2018). Doing focus groups (2nd edition.). Sage.

Citazione stile Chigago Style (17a edizione)

Barbour, Rosaline S., e Uwe Flick. Doing Focus Groups. 2nd edition. Los Angeles: Sage, 2018.

Citatione MLA (9a ed.)

Barbour, Rosaline S., e Uwe Flick. Doing Focus Groups. 2nd edition. Sage, 2018.