Lua APA (7ú heag.)

McBurney, D. H. (2001). Research methods (Fifth edition.). Cengage Learning.

Lua i Stíl Chicago (17ú heag.)

McBurney, Donald H. Research Methods. Fifth edition. Belmont, CA: Cengage Learning, 2001.

Lua MLA (8ú heag.)

McBurney, Donald H. Research Methods. Fifth edition. Cengage Learning, 2001.

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