Citazione Stile APA (7a Edizione)

Creswell, J. W. (2009). Research Design. Response Books.

Citazione stile Chigago Style (17a edizione)

Creswell, John W. Research Design. New Delhi: Response Books, 2009.

Citatione MLA (9a ed.)

Creswell, John W. Research Design. Response Books, 2009.