@book{53852,
	author = {Society of Petroleum Engineers (U.S.)},
	title = {A guide to professional engineering licensure for petroleum engineers and sample P.E. exam},
	publisher = {Society of Petroleum Engineers,},
	year = {2011.},
	address = {[Richardson, TX ] :},
	edition = {11th ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10619554}
}