@book{13150,
	author = {Legget, Robert F. and Hatheway, Allen W.},
	title = {Geology and engineering /},
	publisher = {Mcgraw-Hill College,},
	year = {1988.},
	address = {[S.l.] :},
	edition = {3 Sub ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/007037063X/chopaconline-20}
}