Pillai, M. (1974). Economic abd business statistics (2nd.). Progressive corp.
Chicago Style aipamenaPillai, M. Economic Abd Business Statistics. 2nd. NULL: Progressive corp, 1974.
MLA aipamenaPillai, M. Economic Abd Business Statistics. 2nd. Progressive corp, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.