@book{13705,
	author = {Tapp, B. A. and Watkins, J. R.},
	title = {Energy and mineral resource systems :},
	publisher = {Cambridge University Press,},
	year = {c1990.},
	address = {Cambridge [England] ;},
	note = {includes index},
	url = {http://www.loc.gov/catdir/description/cam031/86011722.html}
}