APA-referens (7:e uppl.)

Educational research: Planning, conducting, and evaluating quantitative and qualitative.

Chicago-referens (17:e uppl.)

Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.

MLA-referens (8:e uppl.)

Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.