Lua APA (7ú heag.)

Schweigert, W. A. (1998). Research methods in psychology: A handbook. Brooks/Cole.

Lua i Stíl Chicago (17ú heag.)

Schweigert, Wendy A. Research Methods in Psychology: A Handbook. Pacific Grove, Calif: Brooks/Cole, 1998.

Lua MLA (9ú heag.)

Schweigert, Wendy A. Research Methods in Psychology: A Handbook. Brooks/Cole, 1998.

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