Dyfyniad APA

Krueger, R. A. (1994). Focus groups: A practical guide for applied research (2nd ed.). Sage Publications.

Dyfyniad Arddull Chicago

Krueger, Richard A. Focus Groups: A Practical Guide for Applied Research. 2nd ed. Thousand Oaks, Calif.: Sage Publications, 1994.

Dyfyniad MLA

Krueger, Richard A. Focus Groups: A Practical Guide for Applied Research. 2nd ed. Sage Publications, 1994.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.