Punch, K. (2005). Introduction to social research: Quantitative and qualitative approaches (2nd Ed.). SAGE Publications.
Citazione stile Chigago Style (17a edizione)Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd Ed. London ; Thousand Oaks, Calif.: SAGE Publications, 2005.
Citatione MLA (9a ed.)Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd Ed. SAGE Publications, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.