(1997). Focus on advanced English C.A.E: Grammar practice. Edinburgh Gate, Halow: Addison-Wesley Longman.
Stile di citazione ChicagoFocus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.
Citazione MLAFocus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.