@book{71383,
	author = {Venugopal, K.},
	title = {Engineering graphics},
	publisher = {New age international},
	year = {c.2015},
	address = {Delhi},
	edition = {13th ed.},
	url = {http://www.amazon.com/Engineering-Graphics-Per-Anna-University/dp/8122438016/ref=sr_1_1?ie=UTF8&qid=1454565876&sr=8-1&keywords=9788122438017}
}