Answered By: Sophie Farrar Last Updated: May 31, 2018 Views: 6
The format for a press release reference is very similar to a reference for an online newspaper article and the University Referencing Guide covers this under Articles (scroll down to Newspaper article online).
Australian Government press release example
Australian Government Department of Defence, "First new Guardian Class Patrol Boat Launched," May 30, 2018, https://www.minister.defence.gov.au/minister/christopher-pyne/media-releases/first-new-guardian-class-patrol-boat-launched.
Australian Government Department of Defence. "First new Guardian Class Patrol Boat Launched." May 30, 2018. https://www.minister.defence.gov.au/minister/christopher-pyne/media-releases/first-new-guardian-class-patrol-boat-launched.
The Chicago Manual of Style Online (section 14.200) provides a further example - see link below.