Gaya APA

Levi, D, S. et al (2003). Designing & managing the supply chain : concepts, strategis & case studies (2). Singapura: McGraw-Hill.

Gaya MLA

Levi, David, Simchi. et al. "Designing & managing the supply chain : concepts, strategis & case studies". 2 Singapura: McGraw-Hill, 2003. Text.