TY  - BOOK
AU  - Kerrod,Robin
TI  - Batuan dan mineral
PY  - 1979///
CY  - Jakarta
PB  - Grolier
KW  - Rocks
KW  - Juvenile literature
KW  - Mineralogy
KW  - Geology
N1  - Judul asal: Rocks and minerals
ER  -