Cita APA (7th ed.)

Griffiths, S. M., & Griffiths, I. (2002). Law for purchasing and supply (3rd ed.). Financial Times/Prentice Hall.

Cita Chicago (17th ed.)

Griffiths, S. Margaret, i Ivor Griffiths. Law for Purchasing and Supply. 3rd ed. Harlow: Financial Times/Prentice Hall, 2002.

Cita MLA (8th ed.)

Griffiths, S. Margaret, i Ivor Griffiths. Law for Purchasing and Supply. 3rd ed. Financial Times/Prentice Hall, 2002.