Cita APA (7th ed.)

Wellenius, B., & Neto, I. (2005). The radio spectrum: Opportunities and challenges for the developing world. World Bank.

Cita Chicago (17th ed.)

Wellenius, Bjorn, i Isabel Neto. The Radio Spectrum: Opportunities and Challenges for the Developing World. Washington, D.C: World Bank, 2005.

Cita MLA (9th ed.)

Wellenius, Bjorn, i Isabel Neto. The Radio Spectrum: Opportunities and Challenges for the Developing World. World Bank, 2005.