Australia. Dept. of Trade and Resources. (1981). Singapore. Australian Government Publishing Service.
Citazione stile Chigago Style (17a edizione)Australia. Dept. of Trade and Resources. Singapore. Canberra: Australian Government Publishing Service, 1981.
Citatione MLA (8a ed.)Australia. Dept. of Trade and Resources. Singapore. Australian Government Publishing Service, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.