The environmental decade (action proposals for the 1970's).  Hearings, Ninety-first Congress, second session. 

 - Washington  U.S. Govt. Print. Off.  1970. 
 - v, 361 p.  24 cm. 
<br/><br/> Hearings held Feb. 2-Apr. 3, 1970. 
<br/><br/><label>LCCN: </label>78607827  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--United States.<br/>Environmental engineering--United States.
<br/><br/><label>LC Class. No.: </label>KF27.G636 1970a 
<br/><br/><label>Dewey Class. No.: </label>301.3