Cita APA (7a ed.)

Griffiths, M., & Griffiths, I. (2002). Law for purchasing and supply (Third edition.). Prentice Hall Financial Times.

Cita Chicago Style (17a ed.)

Griffiths, Margaret, y Ivor Griffiths. Law for Purchasing and Supply. Third edition. Harlow, England: Prentice Hall Financial Times, 2002.

Cita MLA (8a ed.)

Griffiths, Margaret, y Ivor Griffiths. Law for Purchasing and Supply. Third edition. Prentice Hall Financial Times, 2002.