@book{7999,
	author = {Peterson, Roger Tory,},
	title = {A field guide to the birds :},
	publisher = {Houghton Mifflin Co.,},
	year = {1980.},
	series = {The Peterson field guide series ; 1},
	address = {Boston :},
	note = {"Sponsored by the National Audubon Society and National Wildlife Federation.".}
}