00305nam a2200133Ia 45000030006000000080041000060400015000471000028000622450024000902500010001142600018001245460012001420050017001540STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSharma, p.D.; Misra, R.  aElements of ecology  aFirst  bRastogic1977  aEnglish20220125170454.0