@book{213280,
	author = {Clayton, John Powell. and ebrary, Inc.},
	title = {The concept of correlation},
	publisher = {W. de Gruyter,},
	year = {1980.},
	series = {Theologische Bibliothek T�opelmann ;},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10598378}
}