Cita APA (7a ed.)
Environment and urbanization. Human Settlements Programme, International Institute for Environment and Development.
Cita Chicago Style (17a ed.)
Environment and Urbanization. London: Human Settlements Programme, International Institute for Environment and Development.
Cita MLA (9a ed.)
Environment and Urbanization. Human Settlements Programme, International Institute for Environment and Development.
Precaución: Estas citas no son 100% exactas.