Ayling, R. e., & Ayling, R. (1970). Sean O'Casey modern judgments. Aurora.
Chicago Style (17th ed.) ZitazioaAyling, Ronald ed, eta Ronald Ayling. Sean O'Casey Modern Judgments. Nashville: Aurora, 1970.
MLA (9th ed.) ZitazioaAyling, Ronald ed, eta Ronald Ayling. Sean O'Casey Modern Judgments. Aurora, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.