TY  - BOOK
AU  - Naylor,A.H.
AU  - Copley,Heather
TI  - The study book of time and clocks
U1  - 681 
PY  - 1959///
CY  - London
PB  - Bodley Head
KW  - Time
KW  - Juvenile literature
KW  - Clocks and watches
ER  -