0Aguiló, AlfonsoBoyd, ElaineBrayshaw, DanielCambridge University PressCamposDesmurget, MichelDoff, AdrianDOFF, Adrian & THAINE, Craig & OTHERSEales, FrancesEdwards, LyndaJONES, Mary & JONES, GeoffKosta, JoannaKoustaff, LesleyLe Bougnec, Jean-ThierryMacmillanNo AplicaPearson Education,Puchta, HerbertRoderick, MeganS/DSANTILLANASCHÜNKE, MichaelSvedVariosVarios autoresVV. AA.