APA-viite (7. p.)

Bouma, G. D., & Dixon, B. R. (1993). The research process (Revised edition.). Oxford University Press.

Chicago-viite (17. p.)

Bouma, Gary D., ja Beverly R. Dixon. The Research Process. Revised edition. Melbourne, A.C.T: Oxford University Press, 1993.

MLA-viite (9. p.)

Bouma, Gary D., ja Beverly R. Dixon. The Research Process. Revised edition. Oxford University Press, 1993.