(NuRBANIZACIQ I RASSELENIEs (NSBORNIK STATEJ (B: (NPEREWODYs - (NpIWOWAROW(B,(N`(B. (Nl(B.s (N`RIJ lXWOWI^s ((Nm(B.s (NsTATISTIKAs, 1975)