@book{121824,
	author = {McKeon, Matthew W. and ebrary, Inc.},
	title = {The concept of logical consequence},
	publisher = {Peter Lang,},
	year = {c2010.},
	series = {American university studies. Series V, Philosophy,},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10517066}
}