TY  - BOOK
AU  - Quinn,Robert
TI  - Earth then and now 
T2  - Oxford read and discover. Level 6
SN  - 9780194645652 (pbk.)
U1  - 428.6 
PY  - 2015///, c2011
CY  - Oxford, United Kingdom
PB  - Oxford University Press
KW  - Earth sciences
KW  - Juvenile literature
KW  - Readers
KW  - Readers (Elementary)
ER  -