Medium term plan for period 1978-1981 

 - New York  United Nations          1976 
 - xxviii,463p  cm. 
<br/><br/> Supp. no. 6A A/31/6/Add.1 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:77.IN45.N81<--N78t5, L6,6A.1