Report 

 - New York  United Nations USA         1970 
 - xii, 276p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical
<br/><br/><label>Dewey Class. No.: </label>X 9 (D6). 1(X). N7, L0/UN