APA Style

Creswell, J, W. (2003). Research Design : Qualitative, Quantitative, and Mixed Methods Approaches (E-Book) . California: Sage Publications, Inc..

MLA Style

Creswell, John, W.. "Research Design : Qualitative, Quantitative, and Mixed Methods Approaches (E-Book)". California: Sage Publications, Inc., 2003. E-Book.