@book{32041,
	author = {Gutiérrez de Gualda, Juan and Güesa, Miguel de,},
	title = {Arte brebe y muy probechosa de cuenta castellana y arismetica :},
	publisher = {en casa de Miguel de Guessa :},
	year = {14 iunio 1569},
	address = {Impresso en Caragoca [Saragossa] ... :},
	note = {Sign.: A-C8, D3},
	url = {http://www.bibgirona.cat/pandora/details.vm?lang=ca&view=Ripoll&q=id:0000000084}
}