Kuczynski, R. R. (1939). "Living-Space" and population problems: By R. R. Kuczynski. Claredon Pr..
Lua i Stíl Chicago (17ú heag.)Kuczynski, R. R. "Living-Space" and Population Problems: By R. R. Kuczynski. Oxford: Claredon Pr., 1939.
Lua MLA (8ú heag.)Kuczynski, R. R. "Living-Space" and Population Problems: By R. R. Kuczynski. Claredon Pr., 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.