TY  - BOOK
AU  - Walter Schumann
TI  - Gemstones of the world
SN  - 0 7198 0301 2
U1  - 533.8 Sch 
PY  - 2001///
CY  - NAG Press, Great Britain
KW  - Data Conversion Error: invalid accession number: 052218(531)
KW  - Polytechnic - Jewellery
ER  -