@book{222727,
	author = {Frias, Marcelo Fabi�an, and ebrary, Inc.},
	title = {Folk algebras in algebra},
	publisher = {World Scientific,},
	year = {2002.},
	series = {Advances in logic ;},
	address = {River Edge, NJ :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10201237}
}