Sirkin, R. M. (1995). Statistics for the social sciences. Sage Publications.
Chicago Style aipamenaSirkin, R. Mark. Statistics for the Social Sciences. Thousand Oaks, Calif.: Sage Publications, 1995.
MLA aipamenaSirkin, R. Mark. Statistics for the Social Sciences. Sage Publications, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.