Autor, D. H., Levy, F., & Murnane, R. J. (2000). Upstairs, downstairs: Computer-skill complementarity and computer-labor substitution two floors of a large bank. National Bureau of Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Autor, David H., Frank Levy, و Richard J. Murnane. Upstairs, Downstairs: Computer-skill Complementarity and Computer-labor Substitution Two Floors of a Large Bank. Cambridge: National Bureau of Economic Research, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Autor, David H., et al. Upstairs, Downstairs: Computer-skill Complementarity and Computer-labor Substitution Two Floors of a Large Bank. National Bureau of Economic Research, 2000.
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