APA (7 वां संस्करण) प्रशस्ति पत्र
Zeid, I. (1991). CAD/CAM: Theory and Practice (2nd ed.). McGraw Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Zeid, Ibrahim. CAD/CAM: Theory and Practice. 2nd ed. New Delhi: McGraw Hill Education, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Zeid, Ibrahim. CAD/CAM: Theory and Practice. 2nd ed. McGraw Hill Education, 1991.
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