00285nam a2200121 a 450000500170000002000150001708200170003210000220004924500330007125000110010426000310011530000170014620251203091715.0  a0697137651  a576,bD, ben  aBenson, Harold J.  aMicrobiological applications  a6th ed  aDubuquebWm.C. Brownc1994  ax,448p, 26cm