@book{57601,
	author = {Nordhaus, William D. and ebrary, Inc.},
	title = {Nature's numbers},
	publisher = {National Academy Press,},
	year = {c1999.},
	address = {Washington, D.C. :},
	note = {"Panel on Integrated Environmental and Economic Accounting, Committee on National Statistics, Commission on Behavioral and Social Sciences and Education, National Research Council."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10038729}
}