@article {783,
	title = {On Pomacea sordida (Swainson, 1823) (Prosobranchia, Ampullariidae)},
	journal = {Mem{\'o}rias do Instituto Oswaldo Cruz},
	volume = {84},
	year = {1989},
	pages = {351-355},
	author = {Thiengo, Silvana C}
}
