APA
Grbich C., . (2013). Qualitative data analysis. London: Sage Publications.
Chicago
Grbich Carol, . 2013. Qualitative data analysis. London: Sage Publications.
Harvard
Grbich C., . (2013). Qualitative data analysis. London: Sage Publications.
MLA
Grbich Carol, . Qualitative data analysis. London: Sage Publications. 2013.