APA (7th ed.) Citation

Ayling, R., & Durkan, M. J. (1978). Sean O'Casey: A bibliography. Macmillan.

Chicago Style (17th ed.) Citation

Ayling, Ronald, and Michael J. Durkan. Sean O'Casey: A Bibliography. London ; New York: Macmillan, 1978.

MLA (9th ed.) Citation

Ayling, Ronald, and Michael J. Durkan. Sean O'Casey: A Bibliography. Macmillan, 1978.