Official year book of New South Wales.
Australian Bureau of Statistics.cn
Australia.Commonwealth Bureau of Census and Statistics.cn
New South Wales.Bureau of Statistics and Economics.cn
Sydney.
No vols. published for 1901/02-1903/04, 1906/07, 1943/44-1944/45, 1946/47.
Vols. for 1904/05-1907/08 called 1st-3rd issue; vols. for 1908/09-1917 lack vol. numbering.
Vols. 1-54 issued by the Bureau of Statistics and Economics of New South Wales; v. 55-63 by Australian Bureau of Census and Statistics; v. 64-    by the Australian Bureau of Statistics.