00307nam a2200121Ia 45000030006000000080041000060400015000471000050000622450035001122600009001475460012001560050017001680STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aNational Council of Applied Economic Research  aCriteria for fixation of water  c1959  aEnglish20220125165553.0