Cita APA

Somekh, B., & Lewin, C. (2011). Theory and methods in social research (2. ed.). London: SAGE.

Citación estilo Chicago

Somekh, Bridget, y Cathy Lewin. Theory and Methods in Social Research. 2. ed. London: SAGE, 2011.

Cita MLA

Somekh, Bridget, y Cathy Lewin. Theory and Methods in Social Research. 2. ed. London: SAGE, 2011.