00451nam a2200169Ia 4500082002000000100002600020245003000046260003100076300001600107500000500123690000600128700000500134952010100139964001700240921000900257999001500266  a339.43bW981.HC  aWykstra, R. A. d ed.  aHuman capital formationb  aNew YorkbFree Pressc1971  axxvi, 502p.  a  a   a  00104070aISIbISId1998-08-31l0o339.43 W981.HCpDP5864r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a7175  c7175d7175