Gray, Oscar S. <br/><br/>
Cases and materials on environmental law /    
Oscar S. Gray. 
 - 2nd ed. 
 - Washington :   The Bureau of National Affairs,   1973. 
 - xxii, 1420 p. ;    25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental law --Cases.--United States ----
<br/><br/><label>Dewey Class. No.: </label>344.73046