TY  - BOOK
AU  - Okumu, B. Gladys
AU  - Nyamweya,N.Humpden
AU  - Jerotich Rosebella
AU  - Kiura James G.
AU  - Mungania Shadrack
TI  - Secondary Biology: Form Four Students Book 
SN  - 9789966651686
U1  - 373 5th ed.
PY  - 1989///
CY  - Nairobi
PB  - Kenya Literature Bureau
KW  - Biology
ER  -