Lal's commentaries on water and air pollution and environment protection laws ( Volume 1 ) 
revised by M. C. Mehta 
 - 4th ed. 
 - Delhi  Delhi Law House  2V 
 - 1423p. 
<br/><br/> In 2 Volumes 
<br/><br/><label>Subjects--Index Terms: </label>Environmental law - India  Environmental protection, Water  Environmental protection, Air 
<br/><br/><label>Universal Decimal Class. No.: </label>349.6(540)  / LAL'00.1