Citazione Stile APA (7a Edizione)

Creswell W. John & Creswell J. David. (2018). Research Design (3rd ed.). SAGE.

Citazione stile Chigago Style (17a edizione)

Creswell W. John e Creswell J. David. Research Design. 3rd ed. New Delhi: SAGE, 2018.

Citatione MLA (9a ed.)

Creswell W. John e Creswell J. David. Research Design. 3rd ed. SAGE, 2018.