00408nam a2200145 a 450000500170000000800410001704100080005808200120006610000240007824500510010226400370015330000310019065000180022170000230023920260717091255.0260717s1972    ii            000 0 eng d  aeng04a579.0781 aNorris, John Robert10aMethods in microbiology /cNorris, John Robert 1aLondon :bAcademic Press,c1972.  axi, 385 p. : ill. ; 23 cm. 4aMicrobiology.1 aRibbons, Douglas W