@book{12247,
	author = {Sikka, V. B.},
	title = {A course in civil engineering drawing /},
	publisher = {?S. K. Kataria & Sons (Publishers),},
	year = {2012.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8188458880/chopaconline-20}
}