Gray, Oscar S <br/><br/>
Cases and materials on environmental law 

 - 2nd ed. 
 - Washington  The Bureau of National Affairs  1973 
 - xxii, 1420p. 
<br/><br/><label>ISBN: </label>0871791218 
<br/><br/><label>Subjects--Index Terms: </label>Environmental law - United States 
<br/><br/><label>Universal Decimal Class. No.: </label>349.6(73)  / GRA'73