Percy Kraly, E. <br/><br/>
Long-term inmigration to the United States : New approaches to measurement 

<br/><br/> pp. 60-92 
<br/><br/> tbls. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inmigración<br/>Estados Unidos de America<br/>Analisis Demografico