Griffiths, S. M., & Griffiths, I. (2002). Law for purchasing and supply (3rd ed.). Financial Times/Prentice Hall.
Citazione stile Chigago Style (17a edizione)Griffiths, S. Margaret, e Ivor Griffiths. Law for Purchasing and Supply. 3rd ed. Harlow: Financial Times/Prentice Hall, 2002.
Citatione MLA (8a ed.)Griffiths, S. Margaret, e Ivor Griffiths. Law for Purchasing and Supply. 3rd ed. Financial Times/Prentice Hall, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.