Bertrand Russell, 1872-1970
PDbZ΄
QDMσ
R|PDNh(1872`1900)
R|QDNII(1901-1913)
R|RDNIII(1914-1921)
R|SDNIV(1922-1944)
R|TDNV(1945-1955)
R|UDNVI(1956-1970)
