@inbook{NARMS:SourceID:230994,
author = {Sowerby, G. B. I},
title = {Monograph of the genus Columbella. In G. B. Sowerby II (ed.), Thesaurus conchyliorum, or monographs of genera of shells.},
url = {http://biodiversitylibrary.org/page/11076453},
year = {1844}
}