Lua APA (7ú heag.)

Perrin, R. (2005). Handbook for college research (3rd ed.). Houghton Mifflin Company.

Lua i Stíl Chicago (17ú heag.)

Perrin, Robert. Handbook for College Research. 3rd ed. Boston, New York: Houghton Mifflin Company, 2005.

Lua MLA (9ú heag.)

Perrin, Robert. Handbook for College Research. 3rd ed. Houghton Mifflin Company, 2005.

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