APA aipamena

Julia Burchell. Cambridge IGCSE English Revised Edition. Collins Cambridge.

Chicago Style aipamena

Julia Burchell. Cambridge IGCSE English Revised Edition. UK: Collins Cambridge.

MLA aipamena

Julia Burchell. Cambridge IGCSE English Revised Edition. Collins Cambridge.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.