APA (7th ed.) Citation

Kiefer, C. (2004). Quantum gravity (1. publ.). Clarendon Press.

Chicago Style (17th ed.) Citation

Kiefer, Claus. Quantum Gravity. 1. publ. Oxford: Clarendon Press, 2004.

MLA (9th ed.) Citation

Kiefer, Claus. Quantum Gravity. 1. publ. Clarendon Press, 2004.

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