Input-output bibliography,1966-1970 

 - New York  United Nations          1972 
 - x,50p.  cm. 
 - Statistical papers series M;55; Vol.III.subjects .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:310J89A.aN70<N66, L0/UN