APA (7th ed.) Citation

John W. Carroll & Carroll, J. W. (2014). A time travel dialogue. Open Book Publishers.

Chicago Style (17th ed.) Citation

John W. Carroll and John W. Carroll. A Time Travel Dialogue. Cambridge, England: Open Book Publishers, 2014.

MLA (9th ed.) Citation

John W. Carroll and John W. Carroll. A Time Travel Dialogue. Open Book Publishers, 2014.