Παραπομπή APA

Hoyle, D. (2001). ISO 9000 quality systems handbook/4th ed (4th ed.). Butterworth.

Παραπομπή Chicago Style

Hoyle, David. ISO 9000 Quality Systems Handbook/4th Ed. 4th ed. Oxford: Butterworth, 2001.

Παραπομπή MLA

Hoyle, David. ISO 9000 Quality Systems Handbook/4th Ed. 4th ed. Butterworth, 2001.