@book{119906,
	author = {Holt, Allan St. John. and ebrary, Inc.},
	title = {Principles of construction safety},
	publisher = {Blackwell Science,},
	year = {2001.},
	address = {Oxford ;},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10232783}
}