00610nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102100002100117245007500138260003600213300001900249490002400268650003700292650003900329830002400368CHAP20220329134316.0971013c19721967        r     00010     d  a18520  a19492  a23577  cCHAP  a428.24bA500aAlexander, L. G.  aFirst things first; an integrated course for beginners. Teacher's book  aLondon ; Longman,c1972(c.1967)  a292 p.b: ilus  aNew concept english14aInglésxEstudio y enseñanza.14aInglésxLibros para extranjeros.0 aNew concept english