TY  - BOOK
T1  - Gem cutting;a lapidary's manual.
DA  - [1962]
CY  - Princeton, N.J.,
AU  - Sinkankas, John.
ET  - 2d ed.
CN  - TS752
CN  - TS752
PB  - Van Nostrand
PP  - Princeton, N.J.,
PY  - [1962]
ID  - 15133
KW  - Gems.
TI  - Gem cutting;a lapidary's manual.
ER  -