Ravenstein, Ernest George,  1834-1913. <br/><br/>
The laws of migration / 
E. G. Ravenstein. 
 - Reprint ed. 
 - New York :  Arno Press,  1976. 
 - v. :  ill. ;  22 cm. 
<br/><br/> Reprint of the title originally published in 2 parts in v. 48, pt. 2, June, 1885 and v. 52, pt. 2, June, 1889 of the Journal of the Royal Statistical Society 
<br/><br/><label>ISBN: </label>0405079958 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Migration, Internal.<br/>Emigration and immigration.