TY  - BOOK
AU  - Parsons,Charles J.
AU  - Soukup,Edward J.
TI  - Gems and gemology: a popular presentation of the science of gemology of rthe Amateur, collector and connoisseur 
U1  - 549 
PY  - 1961///
CY  - Mentone, Calif.
PB  - Gembooks
KW  - Precious stones
ER  -