@article {book1995terrestrial,
	title = {The IUCN Species Survival Commission The Conservation Biology of Molluscs},
	number = {9},
	year = {1995},
	pages = {54},
	url = {http://data.iucn.org/dbtw-wpd/edocs/ssc-op-009.pdf$\#$page=59},
	author = {E. A. Kay}
}
