[Kertas kerja] :  Persidangan Berterusan Sempena Hari Alam Sekitar Sedunia 1988, 20 Ogos 1988, KOMTAR, Pulau Pinang 

 - Pulau Pinang :  [s.n.] ,  1988 
 - 1 v. (various paging) :  charts. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Urban ecology (Sociology)--Malaysia--Congresses<br/>City planning--Environmental aspects--Malaysia--Congresses