Martha Vargas

title	ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Faceting for Amateurs	978-0-917646-09-6 (0-917646-09-6)	2003	Glenn Vargas
Faceting for Amatuers	978-0-917646-08-9 (0-917646-08-8)	1987	Glen Vargas