Παραπομπή σε μορφή APA (7η εκδ.)

Armstrong, W. A. (1971). Sean O'Casey. Published for the British Council by Longmen.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Armstrong, William A. Sean O'Casey. Harlow, Essex, Eng: Published for the British Council by Longmen, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Armstrong, William A. Sean O'Casey. Published for the British Council by Longmen, 1971.