APA (7e ed.) Bronvermelding

Hall, N. (1996). The urban opportunity: The work of NGOs.......... Intermediate Technology.

Chicago (17e ed.) Bronvermelding

Hall, Nicolas. The Urban Opportunity: The Work of NGOs.......... London: Intermediate Technology, 1996.

MLA (9e ed.) Bronvermelding

Hall, Nicolas. The Urban Opportunity: The Work of NGOs.......... Intermediate Technology, 1996.