APA (7th ed.) Citation
Heitler, W. (1954). The quantum theory of radiation. Clarendon press.
Chicago Style (17th ed.) Citation
Heitler, Walter. The Quantum Theory of Radiation. Oxford: Clarendon press, 1954.
MLA (9th ed.) Citation
Heitler, Walter. The Quantum Theory of Radiation. Clarendon press, 1954.
Warning: These citations may not always be 100% accurate.