Knowles Don. (2006). Automotive Technician Certification Test Prepartion Manual (Tái bản lần thứ 3.). American: Thomson Delmar Learning.
Παραπομπή Chicago StyleKnowles Don. Automotive Technician Certification Test Prepartion Manual. Tái bản lần thứ 3. American: Thomson Delmar Learning, 2006.
Παραπομπή MLAKnowles Don. Automotive Technician Certification Test Prepartion Manual. Tái bản lần thứ 3. American: Thomson Delmar Learning, 2006.
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