APA (7th ed.) Citation

Ingram, D. J. E. (1956). Spectroscopy at radio and microwave frequencies. Philosophical Library.

Chicago Style (17th ed.) Citation

Ingram, David J. E. Spectroscopy at Radio and Microwave Frequencies. New York: Philosophical Library, 1956.

MLA (9th ed.) Citation

Ingram, David J. E. Spectroscopy at Radio and Microwave Frequencies. Philosophical Library, 1956.