APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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