APA استشهاد

Krippendorff, K. (2013). Content analysis: An introduction to its methodology (3rd ed.). SAGE.

استشهاد بنمط شيكاغو

Krippendorff, Klaus. Content Analysis: An Introduction to Its Methodology. 3rd ed. Los Angeles: SAGE, 2013.

MLA استشهاد

Krippendorff, Klaus. Content Analysis: An Introduction to Its Methodology. 3rd ed. SAGE, 2013.