National environmental act No. 47 of 1980  incorporating amendment act no.56 of 1988 

 -  1980 
 - 40p.  21cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental problems<br/>Social problems and services<br/>Other social problems and services
<br/><br/><label>Dewey Class. No.: </label>363.7  / NAT