Lal's commentaries on water , air pollution and environment protection laws 
revised by Gyanandra Kumar  K. B. Asthana  S. K. Gadi 
 - 3rd ed. 
 - Allahabad  Law Publishers  1990 
 - 1423p. 
<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'90