Read, Peter G. Gemmology / P.G. Read. - Third edition - 324 pages : illustrations (some color) ; 24 cm. ISBN: 0750664495 9780750664493 LCCN: 2006275265 Subjects--Topical Terms: Precious stones.Gems. LC Class. No.: TS752 / .R44 2005 Dewey Class. No.: 553.8