@book{7892,
	author = {Barton, Benjamin Smith, and Salvin, Osbert, and Willughby society.},
	title = {Barton's Fragments of the natural history of Pennsylvania.},
	publisher = {[Printed by Taylor and Francis]},
	year = {1883.},
	address = {London},
	note = {At head of title: The Willughby society.}
}