TY  - BOOK
ED  - Taasisi ya elimu ya watu wazima
TI  - Sayansi: : Kitabu cha tatu
SN  - 9976-2-0007-2
AV  - EAF Q181.T3 No.3 
PY  - 1986///
CY  - Arusha
PB  - Eastern Africa Publications Limited
KW  - Study and teaching
ER  -