Hitchens, C., Dawkins, R., Harris, S., Dennett, D. C., & Fry, S. (2019). The four horsemen: The conversation that sparked an atheist revolution (First U.S. edition.). Random House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHitchens, Christopher, Richard Dawkins, Sam Harris, D. C. Dennett, और Stephen Fry. The Four Horsemen: The Conversation That Sparked an Atheist Revolution. First U.S. edition. New York: Random House, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHitchens, Christopher, et al. The Four Horsemen: The Conversation That Sparked an Atheist Revolution. First U.S. edition. Random House, 2019.
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