Cita APA (7th ed.)

Leenders, M. R., Johnson, P. F., Flynn, A. E., & Fearon, H. E. (2006). Purchasing and supply management. With 50 supply chain cases (13a. ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Leenders, Michiel R., P. Fraser Johnson, Anna E. Flynn, i Harold E. Fearon. Purchasing and Supply Management. With 50 Supply Chain Cases. 13a. ed. Boston: McGraw-Hill, 2006.

Cita MLA (9th ed.)

Leenders, Michiel R., et al. Purchasing and Supply Management. With 50 Supply Chain Cases. 13a. ed. McGraw-Hill, 2006.