Style de citation APA (7e éd.)

Griffiths Margaret & Griffiths Ivor. (2002). Law for purchasing and supply (3rd ed.). Pearson education.

Style de citation Chicago (17e éd.)

Griffiths Margaret et Griffiths Ivor. Law for Purchasing and Supply. 3rd ed. Harlow: Pearson education, 2002.

Style de citation MLA (9e éd.)

Griffiths Margaret et Griffiths Ivor. Law for Purchasing and Supply. 3rd ed. Pearson education, 2002.