APA-viite (7. p.)

Flick, U. (1998). An introduction to qualitative research. Sage.

Chicago-viite (17. p.)

Flick, Uwe. An Introduction to Qualitative Research. London: Sage, 1998.

MLA-viite (9. p.)

Flick, Uwe. An Introduction to Qualitative Research. Sage, 1998.