Bulas, Kazimierz 1903-1970.
The Kościuszko Foundation dictionary /
Kazimierz Bulas, Francis J. Whitfield 
. - The Hague : Mouton & Co.,  1961- 
. - 2 v.  24 cm. 
<br/> V. 1. English-Polish  <br/>  V. 2. Polish-English. <br/>