@book{11007,
	author = {Singh, Katar and Shishodia, Anil,},
	title = {Environmental Economics :},
	publisher = {SAGE Publications,},
	year = {2007.},
	series = {Sage texts},
	address = {Los Angeles ;},
	url = {http://www.loc.gov/catdir/toc/ecip0726/2007036650.html}
}