Cita APA (7a ed.)

Flick, U. (2009). An introduction to qualitative research (4th ed.). Sage.

Cita Chicago Style (17a ed.)

Flick, Uwe. An Introduction to Qualitative Research. 4th ed. Los Angeles [etc.]: Sage, 2009.

Cita MLA (9a ed.)

Flick, Uwe. An Introduction to Qualitative Research. 4th ed. Sage, 2009.