00304nam a2200109Ia 4500008004100000082002000041100002400061245003500085260004200120300001000162650002200172140113s9999    xx            000 0 und d  a576.8.095.51 L0  a"Aaronson, Sheldon"  aExperimental microbial ecology  b"New York : Academic Press Inc, 1970"  a236p.  aMicrobial ecology