@book{54377,
	author = {Bourgoyne, Adam T. and ebrary, Inc.},
	title = {Applied drilling engineering},
	publisher = {Society of Petroleum Engineers,},
	year = {1986.},
	series = {SPE textbook series ;},
	address = {Richardson, TX :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10619585}
}