Circular Letters from Sir Frederick Godber and the Hon Frank Hopwood. C.M. Vignoles, Dec. 1945 - Jul. 1951. File no. 18A.

Shell Australia Limited, Circular Letters from Sir Frederick Godber and the Hon Frank Hopwood. C.M. Vignoles, Dec. 1945 - Jul. 1951. File no. 18A. (1945-1951), [UMA-ITE-2008004501595]. University of Melbourne Archives, accessed 10/11/2025, https://archives.library.unimelb.edu.au/nodes/view/309984