@book{57916,
	author = {Shapiro, Arthur M., and ebrary, Inc.},
	title = {Field guide to butterflies of the San Francisco Bay and Sacramento Valley regions},
	publisher = {University of California Press,},
	year = {c2007.},
	series = {California natural history guides ;},
	address = {Berkeley :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10675699}
}