"Status of water supply and waste water collection, treatment and disposal in class I cities-1988." 

 - Delhi  C P C B      1990 
 - 77p  cm. 
 - Control of Urban Pollution Series: CUPS/30/1989-90 .
<br/><br/><label>Standard No.: </label>190567 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(D85):(G:55), GD"