00354nam a2200133Ia 450000500170000008000180001710000220003524500820005726000250013930000100016458300170017494200120019199900170020320260716043822.0 a12.06.01 T858 aTrotz, Ulric O'D. aDevelopment and application of indigenous technology in Guyana : case studies b[s.n.]a[S.l.]c1990 a14 p. c7/6/07kJOYD cMmT858 c54802d54802