Cita APA

Annan, K. (2002). The challenge of sustainability: An action agenda for the global environment. Washington, D.C.: Global Environment Facility.

Citación estilo Chicago

Annan, Kofi. The Challenge of Sustainability: An Action Agenda for the Global Environment. Washington, D.C.: Global Environment Facility, 2002.

Cita MLA

Annan, Kofi. The Challenge of Sustainability: An Action Agenda for the Global Environment. Washington, D.C.: Global Environment Facility, 2002.