APA (7th ed.) Citation

Ingram, D. J. E. (1955). Spectroscopy at radio and microwave frequencies. Butterworths Scientific Publications.

Chicago Style (17th ed.) Citation

Ingram, David J. E. Spectroscopy at Radio and Microwave Frequencies. London: Butterworths Scientific Publications, 1955.

MLA (9th ed.) Citation

Ingram, David J. E. Spectroscopy at Radio and Microwave Frequencies. Butterworths Scientific Publications, 1955.

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