HAMPHRIES J. (1999). HOW TO MANAGE A SALES TEAM. JAICO PUB. HOUSE.
Chicago Style aipamenaHAMPHRIES J. HOW TO MANAGE A SALES TEAM. MUMBAI: JAICO PUB. HOUSE, 1999.
MLA aipamenaHAMPHRIES J. HOW TO MANAGE A SALES TEAM. JAICO PUB. HOUSE, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.