00288nam a2200109Ia 450000500170000008000190001710000180003624500720005426000250012630000100015158300170016120260716043822.0  a12.06.01 C9482  aCropper, John  aDevelopment and application of indigenous technology : final report  b[s.n.]a[S.l.]c1990  a46 p.  c7/6/07kJOYD