"Vehicles stalled in vicinity of brilliant, transparent mushroom-shaped object having occupants with cat-like faces. Quad-rangular proturbance underneath."

Report from National Archives of Australia, page 27, item 848 in

https://recordsearch.naa.gov.au/SearchNRetrieve/Interface/ViewImage.aspx?B=30030606&S=1

"Title Scientific Intelligence - General - Unidentified Flying Objects
Contents range 1957 - 1971
Series number A13693
Control symbol 3092/2/000
Access status Open
Item ID 30030606"