Gaya APA

Ptak, C, A., Schragenheim, E. (2004). ERP tools, techniques, and applications for integrating the supply chain (2). Florida: the st. lucie press.

Gaya MLA

Ptak, Carol, A.., Schragenheim, Eli. "ERP tools, techniques, and applications for integrating the supply chain". 2 Florida: the st. lucie press, 2004. Text.