@book{6939,
	author = {Chandola, S.P.},
	title = {A textbook of transportation engineering },
	publisher = {S Chand & Co Ltd,},
	year = {2011.},
	address = {New Delhi},
	url = {http://www.amazon.com/exec/obidos/ASIN/8121920728/chopaconline-20}
}