TY  - GEN
AU  - Suwa, Yasukazu
TI  - Gemstones : quality and value vol 1
SN  - 4418999027
PY  - 1993///
CY  - Tokyo
PB  - Sekai Bunka Publishing Inc.
KW  - GEMS
KW  - GEMMOLOGY
KW  - PRECIOUS STONES
KW  - JEWELLERY
N1  - Index included
ER  -