@book{50668,
	author = {Healey, Bernard J., and Walker, Kenneth T., and ebrary, Inc.},
	title = {Introduction to occupational health in public health practice},
	publisher = {Jossey-Bass,},
	year = {c2009.},
	address = {San Francisco :},
	edition = {1st ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10330164}
}