@book{219675,
	author = {Green Chemistry program (U.S.)},
	title = {The Presidental Green Chemistry Challenge Awards Program, summary of... award entries and recipients, Green Chemistry Challenge},
	publisher = {U.S. Environmental Protection Agency, Office of Pollution Prevention and Toxics.},
	address = {Washington,D.C.},
	note = {Description based on first issue; title from title screen (viewed on Apr. 21, 2008).},
	url = {http://purl.access.gpo.gov/GPO/LPS93345}
}