Government publication
In-text reference
According to the Office of the Chief Scientist (2013) ...
OR
... as it had been identified (Office of the Chief Scientist, 2013).
Reference list
Use the government department or organisation name as the author if no other author is listed. If the author and publisher is the same organisation then omit the publisher.
Surname, Initial. (Year). Title of publication. Publisher. DOI or URL
Office of the Chief Scientist. (2013). Science, Technology, Engineering and Mathematics in the national interest: A strategic approach. Australian Government. https://www.chiefscientist.gov.au/wp-content/uploads/STEMstrategy290713FINALweb.pdf