APA aipamena

Kirk Teska. Invention: Patently Obvious. IEEE spectrum.

Chicago Style aipamena

Kirk Teska. "Invention: Patently Obvious." IEEE Spectrum .

MLA aipamena

Kirk Teska. "Invention: Patently Obvious." IEEE Spectrum, .

Kontuz: berrikusi erreferentzia hauek erabili aurretik.