00274nam a2200121 a 450000100080000000500110000800800410001910000170006024500180007726000310009530000090012665300170013515888011992-08-03       1974    bl uuuu     u0uu1 u    #d1 aSOUZA, R. de  aAntibioticos.  aBelo Horizonte: UFMGc1974  a28p.  aAntibioticos