TY  - BOOK
AU  - 
AU  - 
TI  - Gem - Stones / 
U1  - 549 SMI 13th.ed.
PY  - 1958///
CY  - London
PB  - Methuen & Co. Ltd.
KW  - Precious Stones
N1  - First published in 1912 under title: Gem-stones and their distinctive characters; Includes bibliographical references ( p.: 532 - 543 ),  indexs ( p. 547 - 560 )
ER  -