TY  - BOOK
AU  - A.L.D Mwanza 
TI  - Strides science and technology form 4
SN  - 9990863512
U1  - 509.6897 21
PY  - 2002///
CY  - Blantyre
PB  - Longman Malawi 
KW  - Science and technology
N1  - Includes index
ER  -