Oil Memos - Registration of colours (of motor spirits), Apr. 1930 - Jun. 1930. Vol. 110, SR5B.

Shell Australia Limited, Oil Memos - Registration of colours (of motor spirits), Apr. 1930 - Jun. 1930. Vol. 110, SR5B. (1930), [UMA-ITE-2008004501357]. University of Melbourne Archives, accessed 13/12/2025, https://archives.library.unimelb.edu.au/nodes/view/309746