00703nam a2200229Ia 4500001000700000003000500007005001700012008004100029020001500070035002000085040002300105100003200128245008900160260005100249300003000300336000800330337001600338338001900354504003000373050002200403650004800425119305BIBL20180911121309.0891201s1989 pr ab b 000 0 spa d a9686308210 a(OCoLC)20718082 aPBRcPBRbspaerda2 aOrtiz García, Angel Luis.14aLos estudios sociales :bhacia los siglos XXI y XXII /cAngel Luis Ortíz García. aRío Piedras, P.R. :bEditorial Edil ,c1989. a421 p.bill., mapc21 cm. btxt 2rdamediabn 2rdacarrierbnc aBibliography: p. 417-421.00aH62 .A2bO76 1989 0aSocial sciencesxStudy and teaching.2Local