@book{50453,
	author = {Blackbourn, Graham A.,},
	title = {Cores and core logging for geoscientists /},
	publisher = {Whittles Publishing,},
	year = {2012.},
	address = {Caithness, Scotland :},
	edition = {Second edition.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10904603}
}