00633cam 2200217 450 1957710http://id.bnportugal.gov.pt/bib/porbase/195771020030520195400.00-674-90698-5enc.15391PTBN0071840519910812d1993 k y0pory0103 baengGB<A >treatise on the familyGary S. BeckerEnlarged editionCambridgeHarvard University Press1993XV, 424 p.quadros, gráficos25 cm301BNpor288017BeckerGary Stanley148478PTBNRPCS.E.-538coopULICSmq826869bccoopULICS169170LCS1-311