TY  - BOOK
AU  - Wiersma, Dirk J  .
TI  - Magic of minerals and rocks / 
SN  - 3-540-21053-9
U1  - H1 
PY  - 2004///
CY  - New York : 
PB  - Springer-Verlag , 
KW  - Earth Sicence- Rocks and minerals
ER  -