The petroleum handbook: compiled by members of the Staff of the Royal Dutch/Shell Group of Companies, Fifth edition, 1966

Shell Australia Limited, The petroleum handbook: compiled by members of the Staff of the Royal Dutch/Shell Group of Companies, Fifth edition, 1966 (1966), [UMA-ITE-2008004501851]. University of Melbourne Archives, accessed 11/11/2025, https://archives.library.unimelb.edu.au/nodes/view/310239