00569     2200217   4500001002100000005001700021008004100038035002600079245006200105100001900167110002300186260004200209300001600251022000800267650001300275650001600288650001300304650001400317863000600331990001400337INLIS00000000000069520220516130323.0220516|                      ||| | ind    a 0010-05220000000038500aEconomic Return from Investments in Research and Training0 aEdwin Manfield0 a"MAINFIELD, Edwin"  aWashington, D.CbThe World Bankc1994  a21p.; 28 cm  a338 0aECONOMIC 0aINVESTMENTS 0aRESEARCH 0aTRAINING.  a1  a2035/2007