Não informado. (1973). Environmental comment. Urban Land Institute, Research Division.
Cita Chicago Style (17a ed.)Não informado. Environmental Comment. Washington: Urban Land Institute, Research Division, 1973.
Cita MLA (8a ed.)Não informado. Environmental Comment. Urban Land Institute, Research Division, 1973.
Precaución: Estas citas no son 100% exactas.