1
by Childers, Caroline.
Published 1999
Book
2
by Webster, Robert (Gemologist)
Published 1994
Book
3
by Villiard, Paul
Published 1974
(CARLI) (Other Sources: (CODdb)48508)
Book
4
Published 1971
(CARLI) (Other Sources: (CODdb)52781, (EIUdb)133029)
Journal / Magazine
5
Published 1997
(CARLI) (Other Sources: (COLdb)155508, (SAIdb)45018)
Book
6
8
by Marcum, David.
Published 1986
Book
9
by Robins, Bill.
Published 1981
(CARLI) (Other Sources: (ISLdb)355106, (LACdb)7026)
Book
10
by Dragsted, Ove.
Published 1975
Book
11
by Zucker, Benjamin, 1940-
Published 1984
(CARLI) (Other Sources: (MRTdb)26644)
Book
12
by Barth, Hermann.
Published 1903
(CARLI) (Other Sources: (NBYdb)218135)
Book
16
by Zucker, Benjamin, 1940-
Published 1984
(CARLI) (Other Sources: (SIEdb)96502, (UIUdb)686123)
Book
18
by Webster, Robert.
Published 1978
(CARLI) (Other Sources: (UICdb)364639)
Book
19
by Webster, Robert (Gemologist)
Published 1983
(CARLI) (Other Sources: (ISLdb)289342, (UICdb)400956)
Book
20
by Krzywobłocka, Bożena.
Published 1976
(CARLI) (Other Sources: (UIUdb)281468)
Book