@book {529,
	title = {Manual of conchology, structural and systematic : with illustrations of the species},
	volume = {2(2)},
	year = {1886},
	pages = {265},
	address = {Philadelphia},
	url = {http://www.biodiversitylibrary.org/item/16714$\#$67},
	author = {G.W. Tryon}
}
@article {701,
	title = {On a collection of land-shells from Sarawak, British North Borneo, Palawan, and other neighbouring islands},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1895},
	year = {1895},
	pages = {97{\textendash}127},
	chapter = {97},
	url = {http://www.biodiversitylibrary.org/item/97158$\#$135},
	author = {E.A. Smith}
}
@book {529,
	title = {Manual of conchology, structural and systematic : with illustrations of the species},
	volume = {2(9)},
	year = {1894},
	pages = {366},
	address = {Philadelphia},
	url = {http://www.biodiversitylibrary.org/item/76702$\#$page/370/mode/1up},
	author = {G.W. Tryon}
}
