@book{1502,
	author = {Schnabel, Harry.},
	title = {Tiebacks in foundation engineering and construction /},
	publisher = {Mcgraw-Hill (Tx),},
	year = {1981.},
	address = {[S.l.] :},
	edition = {1st ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070555168/chopaconline-20}
}