Παραπομπή APA

Flick, U. (2014). Introduction to qualitative research (5th ed.). Sage.

Παραπομπή Chicago Style

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

Παραπομπή MLA

Flick, Uwe. Introduction to Qualitative Research. 5th ed. Sage, 2014.