TY  - BOOK
AU  - James, Albert
TI  - Balancing things
SN  - 9780356092843
AV  - PE 1119 .J27 1973
U1  - GS 428.6  
PY  - 1973///
CY  - London : 
PB  - Macdonald & Co Ltd, 
KW  - Readers
KW  - 1950
KW  - Balance
KW  - science
KW  - Juvenile literature
N1  - Includes index.
ER  -