Citazione APA

(1997). Focus on advanced English C.A.E: Grammar practice. Edinburgh Gate, Halow: Addison-Wesley Longman.

Stile di citazione Chicago

Focus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.

Citazione MLA

Focus On Advanced English C.A.E: Grammar Practice. Edinburgh Gate, Halow: Addison-Wesley Longman, 1997.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.