@book {970,
	title = {The genera Vermium exemplified by various specimens of the animals contained in the orders of the Intestina et Mollusca Linnaei : drawn from nature},
	year = {1783},
	publisher = {Printed for the author by J. Dixwell and sold by J. Sewell},
	organization = {Printed for the author by J. Dixwell and sold by J. Sewell},
	address = {London},
	author = {Barbut, James}
}
@book {1551,
	title = {Einleitung in die Concylienkenntniss nach Linn{\'e}; von Johann Samuel Schro{\"e}ter ...},
	year = {1783},
	publisher = {J. J. Gebaner},
	organization = {J. J. Gebaner},
	address = {Halle},
	author = {Schro{\"e}ter, Johann Samuel}
}
