Willingen, M., & Gradl, J. (2004). Migrating your SAP data: The ultimate reference for quick and easy data migration : no programming required. SAP Press.
Citazione stile Chigago Style (17a edizione)Willingen, Michael, e Johann Gradl. Migrating Your SAP Data: The Ultimate Reference for Quick and Easy Data Migration : No Programming Required. New York: SAP Press, 2004.
Citatione MLA (8a ed.)Willingen, Michael, e Johann Gradl. Migrating Your SAP Data: The Ultimate Reference for Quick and Easy Data Migration : No Programming Required. SAP Press, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.