United Nations Human Settlements Programme. Urban Planning and design: United Nations Human Settlements Programme (UN-Habitat). c2012.
Cita Chicago (17th ed.)United Nations Human Settlements Programme. Urban Planning and Design: United Nations Human Settlements Programme (UN-Habitat). United Nations Human Settlements Programme (UN-Habitat): c2012.
Cita MLA (9th ed.)United Nations Human Settlements Programme. Urban Planning and Design: United Nations Human Settlements Programme (UN-Habitat). c2012.
Atenció: Aquestes cites poden no estar 100% correctes.