APA (7e ed.) Bronvermelding

Não informado. (1999). Environment and Urbanization. International Institute for Environment and Development, Human Settlements Programme.

Chicago (17e ed.) Bronvermelding

Não informado. Environment and Urbanization. London: International Institute for Environment and Development, Human Settlements Programme, 1999.

MLA (8e ed.) Bronvermelding

Não informado. Environment and Urbanization. International Institute for Environment and Development, Human Settlements Programme, 1999.

Let op: Deze citaties zijn niet altijd 100% accuraat.