Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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