APA stil citiranja

O'Casey, S. (1955). I Knock at the Door: I Knock at the Door. Leipzig: Paul List.

Chicago stil citiranja

O'Casey, Sean. I Knock at the Door: I Knock at the Door. Leipzig: Paul List, 1955.

MLA stil citiranja

O'Casey, Sean. I Knock at the Door: I Knock at the Door. Leipzig: Paul List, 1955.

Napomena: Ova citiranost nije uvijek 100% točna.