TY  - BOOK
AU  - Okumu,Gladys B.et al
AU  - Gladys B. Okumu, Humpden N. Nyamweya, Rosebella Jerotich, James G. Kiura, Shadrack R. Mungania :
AU  - Nyamweya,Humpden N.
AU  - Jerotich,Rosebella
AU  - Kiura,James G.
AU  -  Mungania,Shadrack R.
ED  - Education, Ministry of
TI  - Secondary Biology: Form four students Book
SN  - 9789966651686
U1  - 500.570 5th ed.
PY  - 1989///
CY  - Nairobi
PB  - Kenya Literature Bereau
ER  -