Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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