Bell, J. (1999). Doing your research project: A guide for first-time researchers in education and social science (3rd edition.). Open University Press.
Chicago Style aipamenaBell, Judith. Doing Your Research Project: A Guide for First-time Researchers in Education and Social Science. 3rd edition. Buckingham, England: Open University Press, 1999.
MLA aipamenaBell, Judith. Doing Your Research Project: A Guide for First-time Researchers in Education and Social Science. 3rd edition. Open University Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.