Sieber, J. E., & Tolich, M. B. (2013). Planning ethically responsible research (2nd ed.). Sage Publications, Inc..
Chicago Style aipamenaSieber, Joan E., and Martin B. Tolich. Planning Ethically Responsible Research. 2nd ed. California: Sage Publications, Inc., 2013.
MLA aipamenaSieber, Joan E., and Martin B. Tolich. Planning Ethically Responsible Research. 2nd ed. Sage Publications, Inc., 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.