TY  - BOOK
AU  - Hochleitner,Rupert
TI  - Gemstones: precious stones, semi-precious stones, natural crystal formations... 
SN  - 0812044541
PY  - 1990///
CY  - New York
PB  - Barron's Educational Series
KW  - Precious stones
N1  - Translated from German by Elizabeth D. Crawford and formerly published by Graefe and Unzer, Munich
ER  -