@book{2727,
	author = {Black, Leslie.},
	title = {Builder’s reference book /},
	publisher = {E & FN Spon,},
	year = {1985.},
	address = {London ;},
	edition = {12th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0651/98203328-d.html}
}