Citazione Stile APA (7a Edizione)

Stewart, D. W., & Shamdasani, P. N. (1990). Focus groups: Theory and practice. Sage Publications.

Citazione stile Chigago Style (17a edizione)

Stewart, David W., e Prem N. Shamdasani. Focus Groups: Theory and Practice. Newbury Park, Calif.: Sage Publications, 1990.

Citatione MLA (9a ed.)

Stewart, David W., e Prem N. Shamdasani. Focus Groups: Theory and Practice. Sage Publications, 1990.