00345nam a2200145Ia 4500008004100000082001400041100001800055245002800073250000600101260003100107300000800138650001800146650001800164653001700182170901s1967 xx 000 0 und d a576bC51M aCollins, C.H. 0aMicrobiological methods a2 aLondonbButterworthsc1967 a404 aLife sciences aPure Sciences aMicrobiology