@book{56896,
	author = {Channing, John and Ridley, John},
	title = {Safety at work},
	publisher = {BUTTERWORTH HEINEMANN},
	year = {1999},
	address = {Oxford},
	edition = {5th ed.},
	note = {Includes bibliographical references and index.},
	url = {http://www.loc.gov/catdir/toc/els033/99191393.html}
}