Firkowicz, S. (1938). O Karaimach w Polsce. [s.n].
Chicago Style (17th ed.) CitationFirkowicz, Szemaja. O Karaimach W Polsce. Troki [k. Wilna]: [s.n], 1938.
MLA (9th ed.) CitationFirkowicz, Szemaja. O Karaimach W Polsce. [s.n], 1938.
Warning: These citations may not always be 100% accurate.