Cita APA (7th ed.)
Wellington, J. J., & Szczerbiński, M. (2007). Research methods for the social sciences. Continuum International Pub. Group.
Cita Chicago (17th ed.)
Wellington, J. J., i Marcin Szczerbiński. Research Methods for the Social Sciences. London ; New York: Continuum International Pub. Group, 2007.
Cita MLA (9th ed.)
Wellington, J. J., i Marcin Szczerbiński. Research Methods for the Social Sciences. Continuum International Pub. Group, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.