Keller, G. (2009). Managerial statistics abbeviated. Australia: South-Western /Cengage Learning.
Chicago Style aipamenaKeller, Gerald. Managerial Statistics Abbeviated. Australia: South-Western /Cengage Learning, 2009.
MLA aipamenaKeller, Gerald. Managerial Statistics Abbeviated. Australia: South-Western /Cengage Learning, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.