00724nam a2200193Ia 4500082002400000100003900024245011400063260003000177300000900207490004700216500000500263690000600268700000500274952010500279952010500384964001700489921000900506999001500515  a309.250182bUn58.SS  aUnited Nations, Statistical Office  aStatistical series for the use of less developed countries in programmes of economic and social developmentb  aNew YorkbThe Auth.c1959  a56p.  aStatistical papers, U.N., series Mv no.31  a  a   a  00104070aISIbISId1998-06-04l0o309.250182 Un58.SSpDP1702r2019-02-14 00:00:00w2019-02-14yBK  00104070aISIbISId1998-06-04l0o309.250182 Un58.SSpDP1737r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a1309  c1309d1309