@book{542770,
	author = {Blyth, F. G. H. and De Freitas, M. H.},
	title = {A geology for engineers /},
	publisher = {E. Arnold,},
	year = {1984.},
	address = {London :},
	edition = {7th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/els031/85204420.html}
}