@book{7201,
	author = {Dunn, Jon L. and National Geographic Society (U.S.)},
	title = {National Geographic field guide to the birds of North America /},
	publisher = {National Geographic,},
	year = {c2006},
	address = {Washington, D.C. :},
	edition = {5th ed},
	note = {Includes index},
	url = {http://www.loc.gov /catdir/enhancements/fy0701/2006049420-b.html}
}