latCiruelo, PedroCursus quator Mathematicaru Artiu Liberaliu quas recollegit atque correxit magister Petr[us] Ciruelus..s.n.]1526 (1528)http://zaguan.unizar.es/record/3139http://zaguan.unizar.es/record/3139oai:zaguan.unizar.es:3139