Opie, C., & Sikes, P. J. (2004). Doing educational research: A guide to first-time researchers. Sage.
Citazione stile Chigago Style (17a edizione)Opie, Clive, e Patricia J. Sikes. Doing Educational Research: A Guide to First-time Researchers. London: Sage, 2004.
Citatione MLA (9a ed.)Opie, Clive, e Patricia J. Sikes. Doing Educational Research: A Guide to First-time Researchers. Sage, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.