Não informado. (2003). Production and Operations Management. Production and Operations Management Society.
Chicago-Zitierstil (17. Ausg.)Não informado. Production and Operations Management. Baltimore, Md: Production and Operations Management Society, 2003.
MLA-Zitierstil (8. Ausg.)Não informado. Production and Operations Management. Production and Operations Management Society, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.