Environment protection an expanding task for society. 

 - [s.l.] :    [s.n.] ,    [n.d.] 
 - 32 p. :    ill.    21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Environment protection -- Sweden.
<br/><br/><label>Gov. Doc. Class. No.: </label>G. SWE A3 (02) [1973]/1