Kuczynski, R. R. (1939). "Living-Space" and population problems: By R. R. Kuczynski. Claredon Pr..
Chicago-Zitierstil (17. Ausg.)Kuczynski, R. R. "Living-Space" and Population Problems: By R. R. Kuczynski. Oxford: Claredon Pr., 1939.
MLA-Zitierstil (8. Ausg.)Kuczynski, R. R. "Living-Space" and Population Problems: By R. R. Kuczynski. Claredon Pr., 1939.
警告：这些引文格式不一定是100％准确.