APA (7th ed.) Citation

Krueger, R. A., & Casey, M. A. (2006). Focus groups: A practical guide for applied research (3. ed., 8. print.). Sage.

Chicago Style (17th ed.) Citation

Krueger, Richard A., and Mary Anne Casey. Focus Groups: A Practical Guide for Applied Research. 3. ed., 8. print. Thousand Oaks [u.a.]: Sage, 2006.

MLA (9th ed.) Citation

Krueger, Richard A., and Mary Anne Casey. Focus Groups: A Practical Guide for Applied Research. 3. ed., 8. print. Sage, 2006.