@book {707,
	title = {Monographia heliceorum viventium, sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum},
	volume = {6},
	year = {1868},
	pages = {598},
	address = {Lipsiae},
	url = {http://www.biodiversitylibrary.org/bibliography/12727},
	author = {L. Pfeiffer}
}
