Baltic and Scandinavian Countries :  a survey of the peoples and states on the Baltic with special regard to their history, geography and economics / 
ed. Józef Borowik. 
 - Gdynia :  Baltic Institute,  1936-1939. 
 -  33 cm. 
 - Niereg. 
 - Vol. 3, nr 1 (1937) = nr 5-vol. 5, nr 2 (1939).