APA (7th ed.) Citation

Smolin, L. (2000). Three roads to quantum gravity. Phoenix.

Chicago Style (17th ed.) Citation

Smolin, Lee. Three Roads to Quantum Gravity. London: Phoenix, 2000.

MLA (8th ed.) Citation

Smolin, Lee. Three Roads to Quantum Gravity. Phoenix, 2000.

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