00373nam a2200133Ia 4500008004100000082001700041100005600058245001100114260004800125300000800173650001800181650001800199653002200217170901s1957    xx            000 0 und d  a576.15bS99P  aSymposium on Microbial Ecology, London, April 1957. 0aPapers  aCambridgebCambridge University Pressc1957  a388  aLife sciences  aPure Sciences  aMicrobial Ecology