Amendments to the Environmental education act of 1970.  Hearings, Ninety-third Congress, first session, on H.R. 3927 ... 
April 17; May 15 and 17, 1973. 
 - Washington  U.S. Govt. Print. Off.  1973. 
 - iv, 170 p.  24 cm. 
<br/><br/><label>LCCN: </label>73602654  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--Study and teaching--United States.
<br/><br/><label>LC Class. No.: </label>KF27  / .E335 1973f 
<br/><br/><label>Dewey Class. No.: </label>344/.73/04607 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y 4.Ed 8/1:En 8/973