Cita APA

Frankfort-Nachmias, C., & Nachmias, D. (1996). Research methods in the social sciences.

Chicago Edition Citation

Frankfort-Nachmias, Chava, i David Nachmias. Research Methods in the Social Sciences. London, Arnold, 1996.

Cita MLA

Frankfort-Nachmias, Chava, i David Nachmias. Research Methods in the Social Sciences. 1996.