APA (7th ed.) Citation
O'Brien, J. A. (1954). The vanishing Irish: The enigma of the modern world. W.H. Allen.
Chicago Style (17th ed.) Citation
O'Brien, John A. The Vanishing Irish: The Enigma of the Modern World. London: W.H. Allen, 1954.
MLA (9th ed.) Citation
O'Brien, John A. The Vanishing Irish: The Enigma of the Modern World. W.H. Allen, 1954.
Warning: These citations may not always be 100% accurate.