Depesze szyfrowe poselstwa Rzeczypospolitej Polskiej w Budapeszcie 1 X 1939 - 1 I 1941 / 
wstęp i opracowanie Paweł Pietrzyk. 
 - 321 pages :  illustrations ;  24 cm 
<br/><br/>Includes indeks. 
<br/><br/><label>ISBN: </label>9788364806018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Cryptography.<br/>World War, 1939-1945--Cryptography.--Poland<br/>World War, 1939-1945--Cryptography.--Hungary
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Poland--Foreign relations--Hungary--History--20th century.<br/>Hungary--Foreign relations--Poland--History--20th century.
<br/><br/><label>LC Class. No.: </label>DK418.5.H8  / D473 2014