Complemento normativo para instaladores de gas categorÃa A : con resumen de normas UNE. - 4a edición. - 1 online resource : illustrations. ISBN: 9788418430275 Subjects--Topical Terms: Gas appliances--Maintenance and repair. Index Terms--Genre/Form: Electronic books. LC Class. No.: TP758 ebook Dewey Class. No.: 696.2