Hardy, M. A. (1993). Regression With Dummy Variables. Sage.
Chicago Style (17th ed.) ZitazioaHardy, Melissa A. Regression With Dummy Variables. New Delhi.: Sage, 1993.
MLA (9th ed.) ZitazioaHardy, Melissa A. Regression With Dummy Variables. Sage, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.