@book{3611,
	author = {Ahuja.T.D. and Birdi, G.S.},
	title = {Roads,railways, bridges and tunnels engineering /},
	publisher = {Standard Book House,},
	year = {1998},
	address = {New Delhi :},
	edition = {12th ed.},
	note = {"A Wiley-Interscience publication."}
}