Lua APA (7ú heag.)

Berry, R. (1994). The research project: How to write it (3rd ed.). Routledge.

Lua i Stíl Chicago (17ú heag.)

Berry, Ralph. The Research Project: How to Write It. 3rd ed. London ; New York, NY: Routledge, 1994.

Lua MLA (9ú heag.)

Berry, Ralph. The Research Project: How to Write It. 3rd ed. Routledge, 1994.

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