Kaczmarek, R. (2020). Poles in Kaiser's Army On the Front of the First World War. Peter Lang International Academic Publishers.
Chicago-čujuhus (17. p.)Kaczmarek, Ryszard. Poles in Kaiser's Army On the Front of the First World War. Bern: Peter Lang International Academic Publishers, 2020.
MLA-čujuhus (9. p.)Kaczmarek, Ryszard. Poles in Kaiser's Army On the Front of the First World War. Peter Lang International Academic Publishers, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.