00474nam a2200169Ia 4500008004100000020001500041082001700056100001400073245005100087260004200138300000800180650003300188650002000221653002400241653002200265653001700287170901s1978    xx            000 0 und d  a0471994715  a363.61bJ22M  aJames, A. 0aMathematical Models in Water Pollution Control  aChichesterbJohn Wiley and Sonsc1978  a420  aSocial problems and services  aSocial sciences  aMathematical models  aPollution control  aWater supply