United Nations disability statistics database, 1975-1986 :  Techni cal manual / 

 - New York, USA :  United Nations ,  1988. 
 - vi,86p. :  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9211612985 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Disability-- Statistics
<br/><br/><label>Dewey Class. No.: </label>362.4 310