00478nam a2200169 a 450000500170000000800410001702000180005804100080007608200080008410000180009224500830011026400370019330000320023065000180026265000190028065000090029920260717091037.0260717s1978    ii            000 0 eng d  a9780582460676  aeng04a5761 aBull, Alan T.10aCompanion to microbiology : selected topics for further study /cBull, Alan T. 1aNew York :bLongman Inc.,c1978.  avii, 505 p. : ill. ; 26 cm. 4aMicrobiology. 4aMicrobiologie. 4aDNA.