Citazione Stile APA (7a Edizione)
(1981). Hong Kong 1981 Census: Tertiary planning unit population by age. Census and Statistics Department.
Citazione stile Chigago Style (17a edizione)
Hong Kong 1981 Census: Tertiary Planning Unit Population by Age. Hong Kong: Census and Statistics Department, 1981.
Citatione MLA (9a ed.)
Hong Kong 1981 Census: Tertiary Planning Unit Population by Age. Census and Statistics Department, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.