00292cam a22000977a 4500008004000000082001900040100003700059245006500096260002300161300001000184180718b1977   xxu||||| |||| 00| 0 eng d  aR1x5453 K45m/1  aBureau of Economics & Statistics  aMan power studies vol.1cby Bureau of Economics & Statistics  aTrivandrumbc1977  a120p.