APA (7 वां संस्करण) प्रशस्ति पत्र

BHATT N D. (2005). ELEMENTARY ENGINEERING DRAWING. CHAROTAR PUB.HOUSE.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

BHATT N D. ELEMENTARY ENGINEERING DRAWING. ANAND: CHAROTAR PUB.HOUSE, 2005.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

BHATT N D. ELEMENTARY ENGINEERING DRAWING. CHAROTAR PUB.HOUSE, 2005.