Commonwealth Bureau of Census and Statistics & Knibbs, G. H. (1920). Official yearbook of the Commonwealth of Australia, no. 13. Govt. Printer.
Lua i Stíl Chicago (17ú heag.)Commonwealth Bureau of Census and Statistics agus G. H. Knibbs. Official Yearbook of the Commonwealth of Australia, No. 13. [Melbourne]: Govt. Printer, 1920.
Lua MLA (9ú heag.)Commonwealth Bureau of Census and Statistics agus G. H. Knibbs. Official Yearbook of the Commonwealth of Australia, No. 13. Govt. Printer, 1920.
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