Varghese, P. I. (2010). Engineering graphics with Autocad (21st ed.). VIP.
Chicago-stil citatVarghese, P I. Engineering Graphics with Autocad. 21st ed. Trichur: VIP, 2010.
MLA-referensVarghese, P I. Engineering Graphics with Autocad. 21st ed. VIP, 2010.
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