00599nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001700102100002100119245006900140260002900209300001900238490002400257650003700281650003900318830002400357CHAP20220329134316.0971013s1967 r 00010 d a18522 a19494 a23579 cCHAP a428.24bA54f00aAlexander, L. G. aFluency in Englishb: an integrated course for advanced students aLondon :bLongman,c1967 a198 p.b: ilus aNew concept english14aInglésxEstudio y enseñanza.14aInglésxLibros para extranjeros.0 aNew concept english