Não informado. (1999). Environment and Urbanization. International Institute for Environment and Development, Human Settlements Programme.
Chicagoスタイル(17版)引用形式Não informado. Environment and Urbanization. London: International Institute for Environment and Development, Human Settlements Programme, 1999.
MLA(8版)引用形式Não informado. Environment and Urbanization. International Institute for Environment and Development, Human Settlements Programme, 1999.
警告: この引用は必ずしも正確ではありません.