| education =Jagiellonian University, Krakow, Poland (1908; PhD)<br/>London School of Economics, London, England (1910)<br/>University of London, London, England (1916; DSc) | | education =Jagiellonian University, Krakow, Poland (1908; PhD)<br/>London School of Economics, London, England (1910)<br/>University of London, London, England (1916; DSc) |