The petroleum handbook: compiled by members of the Staff of the Royal Dutch/Shell Group, Fourth edition, 1959

Shell Australia Limited, The petroleum handbook: compiled by members of the Staff of the Royal Dutch/Shell Group, Fourth edition, 1959 (1959), [UMA-ITE-2008004501850]. University of Melbourne Archives, accessed 18/04/2026, https://archives.library.unimelb.edu.au/nodes/view/310238