00322nam a2200121Ia 4500082002200000100002000022245006600042260002600108300001000134500000500144700002300149700002800172  a304.6076bP935.WD  aPressat, Roland  aWorkbook in demographybcTr. by E. Grebenik and C. A. M. Sym  aLondonbMethuenc1974  a292p.  a  aGrebenik, E. ; tr.  aSym, C. A. M. ; jt. tr.