TY  - BOOK
AU  - Okumu Gladys B. et al.
AU  - Nyamweya Humpden N.
AU  - Jerotich Rosebella
AU  - Kiura James G.
AU  - Mungania Shadrack
TI  - Secondary biology: Form four student's book
SN  - 9789966651686
U1  - 500.570 5th. ed.
PY  - 1989///
CY  - Nairobi
PB  - KLB
ER  -