APA (7th ed.) Citation

Ingram, D. J. E. (1967). Spectroscopy at radio and microwave frequencies / by D.J.E. Ingram (2nd ed.). Butterworths.

Chicago Style (17th ed.) Citation

Ingram, D. J. E. Spectroscopy at Radio and Microwave Frequencies / by D.J.E. Ingram. 2nd ed. Butterworths, 1967.

MLA (9th ed.) Citation

Ingram, D. J. E. Spectroscopy at Radio and Microwave Frequencies / by D.J.E. Ingram. 2nd ed. Butterworths, 1967.

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