Sage Publications, inc, & Jupp, V. (2006). The Sage dictionary of social research methods. SAGE Publications.

Sage Publications, inc, and Victor Jupp. The Sage Dictionary of Social Research Methods. London ; Thousand Oaks, Calif.: SAGE Publications, 2006.

Sage Publications, inc, and Victor Jupp. The Sage Dictionary of Social Research Methods. SAGE Publications, 2006.