R.B. Ritchie & Son Pty. Ltd. Cashbook Private.

Ritchie, Daniel, R.B. Ritchie & Son Pty. Ltd. Cashbook Private. (1 July 1939-30 June 1945), [UMA-ITE-1975011500063]. University of Melbourne Archives, accessed 07/11/2025, https://archives.library.unimelb.edu.au/nodes/view/226413