APA
Grbich C., . (2013). Qualitative data analysis : an introduction. Sage: Los Angeles.
Chicago
Grbich Carol, . 2013. Qualitative data analysis : an introduction. Sage: Los Angeles.
Harvard
Grbich C., . (2013). Qualitative data analysis : an introduction. Sage: Los Angeles.
MLA
Grbich Carol, . Qualitative data analysis : an introduction. Sage: Los Angeles. 2013.