Conference addresses (opening and closing ceremonies) :  International Conference on Tropical and Ozone Atmospheric Change, 20-23 February 1990, Penang, Malaysia / 
organised by Universiti Sains Malaysia in association with the United Nations Environment Programme 
 - Pulau Pinang :  Universiti Sains Malaysia,  1990 
 - 22 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>9839700049  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atmospheric ozone--Environmental aspects--Congresses.<br/>Air quality management--Government policy--Congresses.