Report 

 - Helsinki  United Nations Industrial Development Organization        1974 
 - 38p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science
<br/><br/><label>Dewey Class. No.: </label>D854oaX9(J:24)p1,N74, L4/UN