TY  - BOOK
AU  - Mwangi, R. W.
TI  - Practical biology for schools 
SN  - 978 9966 495 45 7
U1  - 570 0712 MWA 
PY  - 1992///
CY  - Nairobi
PB  -  Longman
KW  - BIOLOGY STUDY AND TEACHING
ER  -