Cita APA (7th ed.)
Rugg, G., & Petre, M. (2007). A gentle guide to research methods. Open University Press.
Cita Chicago (17th ed.)
Rugg, Gordon, i Marian Petre. A Gentle Guide to Research Methods. Maidenhead: Open University Press, 2007.
Cita MLA (9th ed.)
Rugg, Gordon, i Marian Petre. A Gentle Guide to Research Methods. Open University Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.