International Federation for Housing and Planning International Congress (1973 : Copenhagen). (1973). Copenhagen 1973: International Congress IFHP, 9-14 September. IFHP.
Citazione stile Chigago Style (17a edizione)International Federation for Housing and Planning International Congress (1973 : Copenhagen). Copenhagen 1973: International Congress IFHP, 9-14 September. [s.l.]: IFHP, 1973.
Citatione MLA (9a ed.)International Federation for Housing and Planning International Congress (1973 : Copenhagen). Copenhagen 1973: International Congress IFHP, 9-14 September. IFHP, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.