APA (7th ed.) Citation

Barrow, J. D., & Wheeler, J. A. (1988). The anthropic cosmological principle. Oxford University Press.

Chicago Style (17th ed.) Citation

Barrow, John D., and John A. Wheeler. The Anthropic Cosmological Principle. Oxford: Oxford University Press, 1988.

MLA (8th ed.) Citation

Barrow, John D., and John A. Wheeler. The Anthropic Cosmological Principle. Oxford University Press, 1988.