00509nam a2200169Ia 4500 0000016485 20251012174748.0 2001 us c 9211614392 eng ST/ESA/STAT/SER.M/19/Rev.2 Principles and recommendations for a vital statistics system Revision2. New York United Nations 2001 x, 176p. charts Sales no.: 01.XVII.10 Vital statistics Methodology 10261 10261