Water quality status of Indian aquatic resources   Rivers and wells 

 - Delhi  C P C B      1990 
 - 141p  cm. 
 - Indian National Aquatic Resource Series: Minars/4/1989-90 .
<br/><br/><label>Standard No.: </label>190742 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(D26).2, N0"