Lua APA (7ú heag.)

Mertler, C. A., & Charles, C. M. (2005). Introduction to educational research (5th ed.). Pearson/Allyn and Bacon.

Lua i Stíl Chicago (17ú heag.)

Mertler, Craig A., agus C. M. Charles. Introduction to Educational Research. 5th ed. Boston: Pearson/Allyn and Bacon, 2005.

Lua MLA (9ú heag.)

Mertler, Craig A., agus C. M. Charles. Introduction to Educational Research. 5th ed. Pearson/Allyn and Bacon, 2005.

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