APA-viite (7. p.)

Opie, C., & Sikes, P. J. (2004). Doing educational research: A guide to first-time researchers. Sage.

Chicago-viite (17. p.)

Opie, Clive, ja Patricia J. Sikes. Doing Educational Research: A Guide to First-time Researchers. London: Sage, 2004.

MLA-viite (9. p.)

Opie, Clive, ja Patricia J. Sikes. Doing Educational Research: A Guide to First-time Researchers. Sage, 2004.