TY  - BOOK
AU  - Hubbell,Lawrence
ED  - National Science Teachers Association
ED  - United States.
TI  - The earth
U1  - 550.71 
PY  - 1964///
CY  - Darien, Conn.
PB  - Teachers Pub.
KW  - Earth sciences
KW  - Juvenile literature
KW  - Earth
N1  - Bibliography : p. 95
ER  -