00621nam a2200205Ia 4500001000700000003000500007005001700012008004100029010001500070035002000085040000800105050001400113100003900127245007200166260004700238300001700285504003000302650003500332650004800367129295BIBL20170223064018.0750707s1972 pr 00010 spa d a 72343407 a(OCoLC)01431024 cKSU0 aH62b.O762 aOrtiz García, Angel Luis.2Local14aLos estudios sociales de vanguardiac[por] Angel L. Ortiz García. aRío Piedras, P.R.bEditorial Edilc1972. a196 p.bill. aBibliography: p. 195-196. 0aSocial science research2Local 0aSocial sciencesxStudy and teaching.2Local