00396nam a2200133 a 450000100080000000500110000800800410001910000330006024500870009326000300018030000090021065300240021965300190024310221222002-07-04               bl uuuu     u0uu1 u    #d1 aACARESC (Florianopolis, SC).  aPrograma regional de assistencia tecnica e extensao rural 1989/1990bregiao Mafra.  aFlorianopolis, [19--].c0  a56p.  aAssistencia tecnica  aExtensao rural