Polish encyclopaedia. Vol. 1, The Polish language /
[by Stanislas Dobrzycki] ; History of Polish literature / [by Stanislas Dobrzycki] ; Polish history / [by Ladislas Konopczyński] ; publ. by the Committee for Polish Encyclopaedic Publications at Fribourg-Geneva (Switzerland).
- Geneva : Atar, 1926.
- XVI, 3-551 s., [1] k. tabl. : mapa ; 24 cm.
Publications of the Polish National Committee of America.