United Nations Centre for Human Settlements. Operational activities report. United Nations Centre for Human Settlements (Habitat), [1991n]-.
Citazione stile Chigago Style (17a edizione)United Nations Centre for Human Settlements. Operational Activities Report. Nairobi, Kenya: United Nations Centre for Human Settlements (Habitat), [1991n]-.
Citatione MLA (9a ed.)United Nations Centre for Human Settlements. Operational Activities Report. United Nations Centre for Human Settlements (Habitat), [1991n]-.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.