Lysons, K., & Farrington, B. (2010). Purchasing and supply chain management (7th ed.). Financial Times/Prentice Hall ; Pearson Education.

Lysons, Kenneth, and Brian Farrington. Purchasing and Supply Chain Management. 7th ed. London ; New York : New Delhi: Financial Times/Prentice Hall ; Pearson Education, 2010.

Lysons, Kenneth, and Brian Farrington. Purchasing and Supply Chain Management. 7th ed. Financial Times/Prentice Hall ; Pearson Education, 2010.