APA (7th ed.) Citation

Loudon, R. (1973). The quantum theory of light. Clarendon Press.

Chicago Style (17th ed.) Citation

Loudon, Rodney. The Quantum Theory of Light. Oxford: Clarendon Press, 1973.

MLA (9th ed.) Citation

Loudon, Rodney. The Quantum Theory of Light. Clarendon Press, 1973.

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