Supplementary principles and recommendations for population and housing censuses. 

 - New York  United Nations          1990 
 - vi,143p.  cm. 
<br/><br/> Statistical papers series M, no.67 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.1.N0, N/UN