Alphabetic or syllabic characters in caves on the Glenelg River, N. W. Australia (microform) (IA cihm 10343)
https://commons.wikimedia.org/wiki/File:Alphabetic_or_syllabic_characters_in_caves_on_the_Glenelg_River,_N._W._Australia_(microform)_(IA_cihm_10343).pdf
Glenelg River, N. W. Australia [microform] Publisher Sydney, [Australia] : W.A. Gullick Description Caption title "Read before the Australian Association