TY  - BOOK
AU  - Walpole 
AU  - Hamidah bte Ahmad
TI  - Jarak 
T2  - Siri unit
SN  - 9836256903 
U1  - 530.81 WAL 1999 
PY  - 1999///
CY  - London
PB  - A & C Black Publishers Limited
KW  - Depth perception
KW  - Juvenile literature
KW  - Study and teaching
KW  - Activity programs
KW  - Length measurement
N1  - Mengandungi indeks
ER  -