Lua APA (7ú heag.)

Feldman, R. S. (2008). Understanding psychology (8th ed.). McGraw-Hill Higher Education.

Lua i Stíl Chicago (17ú heag.)

Feldman, Robert S. Understanding Psychology. 8th ed. Boston: McGraw-Hill Higher Education, 2008.

Lua MLA (8ú heag.)

Feldman, Robert S. Understanding Psychology. 8th ed. McGraw-Hill Higher Education, 2008.

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