Παραπομπή APA

Morgan , D. L. (1988). Focus Groups as Qualitative Research. Sage Publications.

Παραπομπή Chicago Style

Morgan , David L. Focus Groups as Qualitative Research. Newbusy Park: Sage Publications, 1988.

Παραπομπή MLA

Morgan , David L. Focus Groups as Qualitative Research. Sage Publications, 1988.