APA (7th ed.) Citation

Barrow, J. D. (1988). The world within the world / John D. Barrow. Clarendon.

Chicago Style (17th ed.) Citation

Barrow, John D. The World Within the World / John D. Barrow. Oxford: Clarendon, 1988.

MLA (9th ed.) Citation

Barrow, John D. The World Within the World / John D. Barrow. Clarendon, 1988.

Warning: These citations may not always be 100% accurate.