Παραπομπή APA

Flick, U. (2014). an introduction to qualitative research (5.). Sage.

Παραπομπή Chicago Style

Flick, Uwe. An Introduction to Qualitative Research. 5. Los Angeles: Sage, 2014.

Παραπομπή MLA

Flick, Uwe. An Introduction to Qualitative Research. 5. Sage, 2014.