Vargas

year of pub­li­ca­ti­onISBNauthor(s)title
1977978-0-917646-01-0Glenn Vargas · Martha VargasFaceting for Amateurs
1975978-0-917646-02-7   ''Diagrams for Faceting, Vol. 1
1979978-0-917646-04-1Glenn VargasDescriptions of gem materials
1987978-0-917646-08-9Glen Vargas · Martha VargasFaceting for Amatuers
2003978-0-917646-09-6Glenn Vargas · Martha VargasFaceting for Amateurs