Gaya APA

Chopra, S., Meindl, P. (2016). Supply chain management : strategy, planning, and operation (6th. ed.). Boston: Pearson Education.

Gaya MLA

Chopra, Sunil., Meindl, Peter. "Supply chain management : strategy, planning, and operation". 6th. ed. Boston: Pearson Education, 2016. Text.