Wallich, P. The ghosts of computers past. IEEE spectrum.
芝加哥风格引文Wallich, P. "The Ghosts of Computers Past." IEEE Spectrum .
MLA引文Wallich, P. "The Ghosts of Computers Past." IEEE Spectrum, .
警告：这些引文格式不一定是100％准确.
APA引文
Wallich, P. The ghosts of computers past. IEEE spectrum.
芝加哥风格引文Wallich, P. "The Ghosts of Computers Past." IEEE Spectrum .
MLA引文Wallich, P. "The Ghosts of Computers Past." IEEE Spectrum, .