@book{6987,
	author = {Gill, P.S.},
	title = {A text book of machine drawing /},
	publisher = {S. K. Kataria & Sons (Publishers),},
	year = {2011.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/8185749795/chopaconline-20}
}