Proceedings :  workshop on low cost aerial photography / 
S. and R.N. Vatasan (eds.). 
 - [Lae] :  Papua New Guinea University of Technology,  1988. 
 - 100 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aerial photography--Prices.<br/>Photography--Prices.