Punch, K. F. (1998). Introduction to social research: Quantitative & qualitative apporches. Sage Publications.
Citación estilo ChicagoPunch, Keith F. Introduction to Social Research: Quantitative & Qualitative Apporches. London: Sage Publications, 1998.
Cita MLAPunch, Keith F. Introduction to Social Research: Quantitative & Qualitative Apporches. Sage Publications, 1998.
Warning: These citations may not always be 100% accurate.