@book{234201,
	author = {Larrard, François de},
	title = {Concrete mixture proportioning :},
	publisher = {E & FN Spon,},
	year = {1999.},
	series = {Modern concrete technology ;},
	address = {London ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0651/98039234-d.html}
}