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DHA'P15 UG/7768 UG/7769 UG/7770 UG/7771 UG/7772 Dhawan, R. K. A Textbook of engineering drawing / R. K. Dhawan. – Subsequent ed.. – New Delhi : S. Chand, 2015 (2016 reprint) xii [2], 680 [3]p. : col. ill. ISBN9788121914314 : Rs.525/- . Mechanical drawing . Engineering design |
