00663nam a2200169Ia 4500001001100000005001700011008004300028020001500071050001100086245013500097260003600232300000700268500010900275650004700384650004700431999001500478000001643220251012174545.0        s1991    xx                  eng c  a921151220400aHB174110aThe Sex and age distributions of population : the 1990 revision of the United Nations global population estimates and projections   aNew YorkbUnited Nationsc1991   ap.  aDepartment of International Economic and Social Affairs 391 p. ; 28 cm. "ST/ESA/SER.A/122." p. 391 NHAH  0aAge distribution (Demography)-xStatistics 0aSex distribution (Demography)-xStatistics  c6117d6117