TY  - GEN
AU  - G.Brocardo
TI  - Minerals & gemstones of the world
SN  - 0715301977
U1  - 553.8 
PY  - 1982///
CY  - N

PB  - David & Charls
KW  - Earth  sciences
KW  - Economic geology
KW  - Minerals
KW  - Gemstone
ER  -