@book{14491,
	author = {Sagoff, Mark.},
	title = {The economy of the earth :},
	publisher = {Cambridge University Press,},
	year = {1988.},
	address = {Cambridge [Cambridgeshire] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0803/87016091-d.html}
}