@book{6943,
	author = {Dhawan, R. K.},
	title = {A Textbook of Engineering Drawing : in first angle projection},
	publisher = {S Chand & Co Ltd,},
	year = {2012.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/8121914310/chopaconline-20}
}