APA (7th ed.) Citation

Voelcker, J. How Green Is My Plug-In? IEEE spectrum.

Chicago Style (17th ed.) Citation

Voelcker, J. "How Green Is My Plug-In?" IEEE Spectrum .

MLA (9th ed.) Citation

Voelcker, J. "How Green Is My Plug-In?" IEEE Spectrum, .

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