Economic commission for europe   annual report (10 april  1976-30 april 1977)    

 - New York  UN           1977 
<br/><br/> Official records: 63rd session, supplement no. 9 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,936:8.N77r, L7,9.2 /UN