Citazione Stile APA (7a Edizione)

Bouma, G. D. (2004). The research process (5th ed.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Bouma, Gary D. The Research Process. 5th ed. Melbourne ; New York: Oxford University Press, 2004.

Citatione MLA (9a ed.)

Bouma, Gary D. The Research Process. 5th ed. Oxford University Press, 2004.