Bryman, A. (1988). Quantity and quality in social research. Routledge.
Chicago Style aipamenaBryman, Alan. Quantity and Quality in Social Research. New Delhi: Routledge, 1988.
MLA aipamenaBryman, Alan. Quantity and Quality in Social Research. Routledge, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.