Gaya APA

Gay, L., Airasian, P. (2000). Educational research : competencies for analysis and application (Ed.6; Cet.1). New Jersey: Prentice-Hall, Inc.

Gaya MLA

Gay, L.R.., Airasian, Peter. "Educational research : competencies for analysis and application". Ed.6; Cet.1 New Jersey: Prentice-Hall, Inc, 2000. Text.