NOVIKCV(V M) <br/><br/>
Natural Methods of Purfying Sewage and Its Utilization in Agriculture Management 

 -  1975  Cold Regions Research and Engineering Laboratory 
 - 1-116  0  Paper 
<br/><br/> Hard Binding 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil & Water Conservation
<br/><br/><label>Dewey Class. No.: </label>DT54      L5