APA (7th ed.) Citation

Roder, H. (1931). Simple method of harmonic analysis for use in radio engineering practice. Proceedings of the IRE, 19, 1481. https://doi.org/10.1109/JRPROC.1931.222479

Chicago Style (17th ed.) Citation

Roder, H. "Simple Method of Harmonic Analysis for Use in Radio Engineering Practice." Proceedings of the IRE 19 (1931): 1481. https://doi.org/10.1109/JRPROC.1931.222479.

MLA (9th ed.) Citation

Roder, H. "Simple Method of Harmonic Analysis for Use in Radio Engineering Practice." Proceedings of the IRE, vol. 19, 1931, p. 1481, https://doi.org/10.1109/JRPROC.1931.222479.