Não informado. (1974). Journal of Purchasing and Materials Management. National Association of Purchasing Management.
Chicago-Zitierstil (17. Ausg.)Não informado. Journal of Purchasing and Materials Management. Oradell, NJ: National Association of Purchasing Management, 1974.
MLA-Zitierstil (8. Ausg.)Não informado. Journal of Purchasing and Materials Management. National Association of Purchasing Management, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.