Gaya APA

Hoyle, D. (1994). ISO 9000 Quality Systems Handbook 4th Ed. (4th Ed.). : Butterworth-Heinemann (BH).

Gaya MLA

Hoyle, David. "ISO 9000 Quality Systems Handbook 4th Ed.". 4th Ed. : Butterworth-Heinemann (BH), 1994. Text.