APA (7th ed.) Citation

Heitler, W. (1966). The quantum theory of radiation (3.ed.,repr.). Clarendon Pr.

Chicago Style (17th ed.) Citation

Heitler, Walter. The Quantum Theory of Radiation. 3.ed.,repr. Oxford: Clarendon Pr, 1966.

MLA (9th ed.) Citation

Heitler, Walter. The Quantum Theory of Radiation. 3.ed.,repr. Clarendon Pr, 1966.