@book{9536,
	author = {McElroy, Charles H. and Lienhart, David A.},
	title = {Rock for erosion control /},
	publisher = {Astm Intl,},
	year = {1993.},
	series = {Astm special technical publication, 1177.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0803114893/chopaconline-20}
}