Citazione Stile APA (7a Edizione)

Krueger, R. A. (1988). Focus groups: A practical guide for applied research. Sage Publications.

Citazione stile Chigago Style (17a edizione)

Krueger, Richard A. Focus Groups: A Practical Guide for Applied Research. Newbury Park, Calif.: Sage Publications, 1988.

Citatione MLA (8a ed.)

Krueger, Richard A. Focus Groups: A Practical Guide for Applied Research. Sage Publications, 1988.