Cita APA

Gumkowski, J., & Leszczyński, K. 1. V. (1961). Poland under Nazi occupation. Polonia Publ. House.

Citación estilo Chicago

Gumkowski, Janusz, y Kazimierz 19XX-2010 VerfasserIn Leszczyński. Poland Under Nazi Occupation. Warsaw: Polonia Publ. House, 1961.

Cita MLA

Gumkowski, Janusz, y Kazimierz 19XX-2010 VerfasserIn Leszczyński. Poland Under Nazi Occupation. Polonia Publ. House, 1961.