Citazione Stile APA (7a Edizione)

Leenders, M. R., & Fearon, H. E. (1993). Purchasing and materials management (10th ed.). Irwin.

Citazione stile Chigago Style (17a edizione)

Leenders, Michiel R., e Harold E. Fearon. Purchasing and Materials Management. 10th ed. Homewood, IL: Irwin, 1993.

Citatione MLA (9a ed.)

Leenders, Michiel R., e Harold E. Fearon. Purchasing and Materials Management. 10th ed. Irwin, 1993.