RB Ritchie & Son Pty Ltd Cash Book 1 July 1937 - 31 December 1938, Outstanding Credits 1939-40 4pp, Journal 28 Feb 1938 - 31 May 1940, Journal MLR Hill etc (/) 1 July 1940 - 30 June 1946

R. B. Ritchie & Son Pty Ltd, RB Ritchie & Son Pty Ltd Cash Book 1 July 1937 - 31 December 1938, Outstanding Credits 1939-40 4pp, Journal 28 Feb 1938 - 31 May 1940, Journal MLR Hill etc (/) 1 July 1940 - 30 June 1946 (1 July 1937-30 June 1946), [UMA-ITE-1985008300313]. University of Melbourne Archives, accessed 03/04/2026, https://archives.library.unimelb.edu.au/nodes/view/255576