TY  - BOOK
TI  - Science & technology : a question & answer book
T2  - Know about series
SN  - 9833002579
U1  - 032.02 23
PY  - 2005///
CY  - Batu Caves, Selangor : 
PB  - Early Learner Publications , 
KW  - Question and answer
ER  -