See this example properly formatted in the QUT Cite tool.
Standard in-text citation examples are in Getting started - In-text citation.
Author AA, Author BB, Author CC. Title of map or section. Title of website or publisher. Date of original publication. Updated Month dd, year. Accessed Month dd, year. URL
Note, in this example the name of the data layer cited is used as the title of the map.
Use the most specific URL available for the view of the map you have used.
If the map has no title, use a short description as the title e.g. 'Location of maternity suites in Central West HHS'.