توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Baumol, W. J., & Robyn, D. L. (2006). Toward an evolutionary regime for spectrum governance: Licensing or unrestricted entry? AEI-Brookings Joint Center for Regulatory Studies.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Baumol, William J., و Dorothy L. Robyn. Toward an Evolutionary Regime for Spectrum Governance: Licensing or Unrestricted Entry? Washington, D.C.: AEI-Brookings Joint Center for Regulatory Studies, 2006.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Baumol, William J., و Dorothy L. Robyn. Toward an Evolutionary Regime for Spectrum Governance: Licensing or Unrestricted Entry? AEI-Brookings Joint Center for Regulatory Studies, 2006.