Upper Silesia / 
iss. by The Polish Ministry of Preparatory Work Concerning the Peace Conference. 
 - London :  The Polish Ministry of Preparatory Work Concerning the Peace Conference,  1944 
 - 28, [3] s. :  il. ;  25 cm. 
 - Information Notes ;  no. 2 .
 - Information Notes - Polish Ministry of Preparatory Work Concerning the Peace Conference  no. 2 .
<br/><br/> Zabiel.,  vol. 1, s. 422, poz. 3425.