APA (7th ed.) Citation

O'Neill, E. (1956). Long day's journey into night / by Eugene O'Neill. Cape.

Chicago Style (17th ed.) Citation

O'Neill, Eugene. Long Day's Journey into Night / by Eugene O'Neill. Cape, 1956.

MLA (9th ed.) Citation

O'Neill, Eugene. Long Day's Journey into Night / by Eugene O'Neill. Cape, 1956.

Warning: These citations may not always be 100% accurate.