@book{242351,
	author = {Blinder, Sy M.},
	title = {Guide to Essential Math: },
	publisher = {Elsevier Science & Technology,},
	year = {2013.},
	address = {Saint Louis, MO:},
	edition = {2da. ed.},
	url = {http://site.ebrary.com/lib/pucpr/docDetail.action?docID=10658872}
}