@book {bhl100489,
	title = {Structural and systematic conchology: an introduction to the study of the Mollusca...},
	volume = {2},
	year = {1883},
	note = {http://www.biodiversitylibrary.org/bibliography/10347},
	pages = {430},
	publisher = {Philadelphia :The author,},
	organization = {Philadelphia :The author,},
	keywords = {Mollusks|},
	url = {http://www.biodiversitylibrary.org/page/32229510$\#$page/613/mode/1up},
	author = {Tryon, George W.}
}
