@book{50787,
	author = {Chappell, David},
	title = {Standard letters for building contractors /},
	publisher = {Blackwell,},
	year = {c2008},
	address = {Oxford, UK ;},
	edition = {4th ed.},
	note = {Includes index},
	url = {http://www.loc.gov/catdir/enhancements/fy0805/2007025763-t.html}
}