APA (7th ed.) Zitazioa
Rugg, G., & Petre, M. (2007). A gentle guide to research methods. Open University Press.
Chicago Style (17th ed.) Zitazioa
Rugg, Gordon, eta Marian Petre. A Gentle Guide to Research Methods. Maidenhead: Open University Press, 2007.
MLA (9th ed.) Zitazioa
Rugg, Gordon, eta Marian Petre. A Gentle Guide to Research Methods. Open University Press, 2007.
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