APA استشهاد

Gibbs. (2009). Analysing Qualitative Data (1st.ed.).

استشهاد بنمط شيكاغو

Gibbs. Analysing Qualitative Data. 1st.ed. London, 2009.

MLA استشهاد

Gibbs. Analysing Qualitative Data. 1st.ed. 2009.