APA (7th ed.) Citation

Symons, R. Tubes: Still vital after all these years. IEEE spectrum.

Chicago Style (17th ed.) Citation

Symons, R.S. "Tubes: Still Vital After All These Years." IEEE Spectrum .

MLA (9th ed.) Citation

Symons, R.S. "Tubes: Still Vital After All These Years." IEEE Spectrum, .

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