TY  - BOOK
AU  - Okpoko, A.I.
TI  - Africas indigenous technology
SN  - 9782823147
PY  - 1999///
CY  - Ibadan 
PB  - Wisdom
KW  - with particular reference to Nigeria
KW  - Technologicaln innovation - Nigeria
KW  - Technology - prumitive - Nigeria
ER  -