Cita APA (7a ed.)

Flick, U. (1999). An introduction to qualitative research. Sage Publications.

Cita Chicago Style (17a ed.)

Flick, Uwe. An Introduction to Qualitative Research. London [etc.]: Sage Publications, 1999.

Cita MLA (9a ed.)

Flick, Uwe. An Introduction to Qualitative Research. Sage Publications, 1999.