Water quality statistics of India 1979-1987 

 - Delhi  C P C B      1990 
 - 184p  cm. 
 - Indian National Aquatic Resource Minars/31989-90 (ENVIS- 1) .
<br/><br/><label>Standard No.: </label>190741 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(D2).2.N87<- N79s, N0"