IIT. 
Austria 
Belgium 
Brazil 
Bulgaria 
Burma 
Cambodge 
Canada 
Czechoslovakia 
Denmark 
England 
        
   
    
  
  
  
   
  
   
  
  
  
  
    
   
  
  
    
  
  
   
  
   
  
  
  
    
  
  
    
LIST OF PARTICIPANTS OF THE WORKING GROUP IV-5 
QUESTIONNAIRE EXPERIMENT 
Bundesamt für Eich- und Vermessungs- 
wesen 
Wien 
Ir Van Twembeke U.L.W. 
13 Hortensialaan Wezembeck - Oppen ) 
Diretoria do Servico Geográfico do 
Exercito 
Rio de Janeiro -  Guanabara 
Union Scientifique Technique des 
Géodésiens Bulgares, 
Section Photogrammétrie 
108, rue Rakovski Sofia 
Office of the Director General of 
Surveys 
460, Merchant Street Rangoon 
Service geographique des F.A.R.K. ) 
Ministere de la Defense Nationale, 
Royaume du Cambodge 
Surveys and Mapping Branch, Dept.of 
Energy, Mines and Res. 
Ottawa 4, Ontario 
Société Scientifico-Techni que 
Siroké 5 Praha 1 
Lendinspektorernes Luftfotoopmaling 
Kobenhavn F 
Commercial Company for Air Survey 
Commercial Company for Air Survey