Warshawsky, Diane Student book 1 : spectrum 1 : a communicative course in english / Diane Warshawsky with Donald R. H. Byrd - Texas : Prentice Hall : Regents Publishing, 1993 - ix, 167 p. : il. col. ISBN: 0138298629 Subjects--Topical Terms: Inglés ---Enseñanza ---Estudiantes extranjeros Dewey Class. No.: 428.64 W295s