00983nam a22002651i 450099100343557970753620030808085507.0031111s1989 uika||||||||||||||||eng 0582746221b12426507-39ule_instARCHE-045979ExLDip.to LingueitaA.t.i. Arché s.c.r.l. Pandora Sicilia s.r.l.420.7Underwood, Mary192542Effective class management :a practical approach /Mary UnderwoodLondon ;New York :Longman,198996 p. :ill. ;22 cmLongman keys to language teachingLingua ingleseInsegnamento.b1242650702-04-1413-11-03991003435579707536LE012 D 16412012000073012le012-E0.00-l- 00000.i1284964913-11-03Effective class management166396UNISALENTOle01213-11-03ma -enguik01