@article {YONG1984,
	title = {{A preliminary study of the freshwater mollusks of the Isle of Youth (Isle of Pines), Cuba}},
	journal = {Walkerana},
	volume = {2},
	number = {7},
	year = {1984},
	pages = {121{\textendash}123},
	author = {YONG, M. and G. PERERA}
}
