003410000a22001450004500060000800000082001200008100002100020245003000041250000600071260005400077260000900131300000800140490003000148650001700178  a100  a576 BRO  aBrock,  Thomas D  aBiology of microorganisms  a2  aNew Jersey, Prentice -Hall Inc, Engle wood Cliffs  c1970  a852  aBiological science series  aMicrobiology