International migration statistics  guidelines for improving data collection systems 
R.E. Bilsborrow ... [et al.].  
 - Geneva  International Labour Office  1997.  
 - xii, 441 p.  25 cm. 
<br/><br/> "A study published with the financial support of the United Nations Population Fund (UNFPA)."  
<br/><br/>Includes bibliographical references (p. 411-425) and index.  
<br/><br/><label>ISBN: </label>9221095177 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emigration and immigration--Statistical methods.
<br/><br/><label>LC Class. No.: </label>JV6019  / .I56 1997