Παραπομπή σε μορφή APA (7η εκδ.)

Punch, K. (2005). Introduction to social research: Quantitative and qualitative approaches (2nd Ed.). SAGE Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd Ed. London ; Thousand Oaks, Calif.: SAGE Publications, 2005.

Παραπομπή σε μορφή MLA (9th εκδ.)

Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd Ed. SAGE Publications, 2005.