Caspari, Emil. <br/><br/>
The working classes of Upper-Silesia :  a historical essay / 
by Emil Caspari. 
 - London ;  Edinburgh :  Sampson Low Marston,  1921 
 - 96 s. ;  19 cm. 
<br/><br/> BP 1901-1939  t. 3 p. 27754.  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Śląsk, Górny--1918-1939 r.