@book{548540,
	author = {Lea, F. M. and Hewlett, P. C.},
	title = {Lea's chemistry of cement and concrete.},
	publisher = {Arnold ;},
	year = {c1998.},
	address = {London :},
	edition = {4th ed. /},
	url = {http://www.loc.gov/catdir/toc/els032/98126331.html}
}