Annual report of the technical assistance board for 1957 . 

 - New York :  UN ,  1972 
 - v, 42 p. :  ill. ;  28 cm.  
 - Department of Environment 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International economics<br/>International cooperation
<br/><br/><label>Dewey Class. No.: </label>338.91  / UN-10