Hoyle, D. (2001). ISO 9000 quality systems handbook (4th ed.). Butterworth-Heinemann.
Cita Chicago (17th ed.)Hoyle, David. ISO 9000 Quality Systems Handbook. 4th ed. Oxford: Butterworth-Heinemann, 2001.
Cita MLA (8th ed.)Hoyle, David. ISO 9000 Quality Systems Handbook. 4th ed. Butterworth-Heinemann, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.