APA (7th ed.) Citation

O'Neill, E. G. (1966). Ah, wilderness! [and other plays]. Penguin Books.

Chicago Style (17th ed.) Citation

O'Neill, Eugene Gladstone. Ah, Wilderness! [and Other Plays]. Harmondsworth: Penguin Books, 1966.

MLA (9th ed.) Citation

O'Neill, Eugene Gladstone. Ah, Wilderness! [and Other Plays]. Penguin Books, 1966.

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