APA (7th ed.) Zitazioa

Creswell, J. W. (2012). Educational Research: Planning, conducting, and evaluating quantitative and qualitative research (4th ed.). Pearson.

Chicago Style (17th ed.) Zitazioa

Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. 4th ed. Noida: Pearson, 2012.

MLA (9th ed.) Zitazioa

Creswell, John W. Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research. 4th ed. Pearson, 2012.