Mędykowski 2018, σελ. 273. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 276. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 285. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελίδες 285–286. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 286. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελίδες 286–287. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 287. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 288. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελ. 289. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.
Mędykowski 2018, σελίδες 288–289. Mędykowski, Witold Wojciech (2018). Macht Arbeit Frei?: German Economic Policy and Forced Labor of Jews in the General Government, 1939-1943. Boston: Academic Studies Press. doi:10.2307/j.ctv75d8v5.13. ISBN9781618115966.