Focus on environment :  papers presented at the Symposium on education for the environment :  implications for the future development of Singapore, 19th May, 1978 / 
edited by Desmond P. Pereira 
 - Singapore :  Institute of Education Academic Staff Association,  1979 
 - 82 p.  ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment--Congresses