United Nations Centre for Human Settlements & United Nations Human Settlements Programme. (2007). The state of the world's cities report 2006/2007: The millennium development goals and urban sustainability: 30 years of shaping the Habitat agenda. UNCHS (Habitat).
Cita Chicago Style (17a ed.)United Nations Centre for Human Settlements y United Nations Human Settlements Programme. The State of the World's Cities Report 2006/2007: The Millennium Development Goals and Urban Sustainability: 30 Years of Shaping the Habitat Agenda. Nairobi, Kenya: UNCHS (Habitat), 2007.
Cita MLA (9a ed.)United Nations Centre for Human Settlements y United Nations Human Settlements Programme. The State of the World's Cities Report 2006/2007: The Millennium Development Goals and Urban Sustainability: 30 Years of Shaping the Habitat Agenda. UNCHS (Habitat), 2007.