In January 1973, the Commonwealth Archives Office changed its name to Australian Archives. In March 1998, the name of the Australian Archives was changed to National Archives of Australia. Publications by these bodies are entered under the name used at the time of publication.
A guide for new researchers, 1998 cover (National Archives of Australia)
Australian gov. website, Jan. 7, 2000 (The Australian Archives became The National Archives of Australia in 1998)