TY  - BOOK
AU  - Leonard,Jonathan N.
AU  - Darling,Louis
AU  - Steinberg,I.N.
TI  - Exploring science
U1  - 557 
PY  - 1961///
CY  - London
PB  - Odhams Press
KW  - Geology
KW  - Juvenile literature
KW  - Science
ER  -