@book{84144,
	author = {Sowerby, G. B.},
	title = {Illustrated Index of British Shells :},
	publisher = {Project Gutenberg,},
	year = {2013},
	address = {Salt Lake City, UT :},
	note = {Release date is 2013-07-26},
	url = {https://www.gutenberg.org/ebooks/43305}
}