APA način citiranja (7. izdanje)

Krueger, R. A., & Casey, M. A. (2000). Focus groups: A practical guide for applied research (3rd ed.). Sage.

Čikaški stil citiranja (17. izdanje)

Krueger, Richard A., i Mary Anne Casey. Focus Groups: A Practical Guide for Applied Research. 3rd ed. Thousand Oaks, Calif: Sage, 2000.

MLA način citiranja (9. izdanje)

Krueger, Richard A., i Mary Anne Casey. Focus Groups: A Practical Guide for Applied Research. 3rd ed. Sage, 2000.