Clausing, Roth. <br/><br/>
The roman colonate   : the theories of its origin /  
by Roth Clausing ; wits an introduction by Vladimir Simkhovitch. 
 - New York :   Columbia University :   Longman Green,   1925. 
 - 333 p. ;   23 cm. 
 - Studies in history economics and public law ;   117 .
 - Studies in history economics and public law ;   117 .