Dyfyniad APA
Wellington, J. J., & Szczerbiński, M. (2007). Research methods for the social sciences. Continuum International Pub. Group.
Dyfyniad Arddull Chicago
Wellington, J. J., and Marcin Szczerbiński. Research Methods for the Social Sciences. London ; New York: Continuum International Pub. Group, 2007.
Dyfyniad MLA
Wellington, J. J., and Marcin Szczerbiński. Research Methods for the Social Sciences. Continuum International Pub. Group, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.