APA (7th ed.) Citation

O'Casey, S., & Krause, D. (1975). The letters of Sean O'Casey. Catholic University of America Press.

Chicago Style (17th ed.) Citation

O'Casey, Sean, and David Krause. The Letters of Sean O'Casey. Washington, D.C.: Catholic University of America Press, 1975.

MLA (9th ed.) Citation

O'Casey, Sean, and David Krause. The Letters of Sean O'Casey. Catholic University of America Press, 1975.