Cita APA (7th ed.)

Wellington, J., & Szczerbiński, M. (2007). Research methods for the social sciences. Continuum International Pub. Group.

Cita Chicago (17th ed.)

Wellington, Jerry, i Marcin Szczerbiński. Research Methods for the Social Sciences. London ; New York: Continuum International Pub. Group, 2007.

Cita MLA (9th ed.)

Wellington, Jerry, i Marcin Szczerbiński. Research Methods for the Social Sciences. Continuum International Pub. Group, 2007.