TY  - BOOK
AU  - WALTER SCHUMANN
TI  - COLLINS PHOTO  GUIDE TO ROCKS,MINERALS AND GEMSTONES
SN  - 0-00-219909-2
U1  - 372.357/SCH/COL 
PY  - 1992///
CY  - LONDON
PB  - HARPERCOLLINS PUBLISHERS
KW  - EDUCATION
KW  - ELEMENTARY EDUCATION
ER  -