Duval, P M - "The Celts : Builders of the 1st European Community ", Courier , Dec 1975

Manion, Margaret M., Duval, P M - "The Celts : Builders of the 1st European Community ", Courier , Dec 1975 (Undated), [UMA-IT-000055581]. University of Melbourne Archives, accessed 29/04/2026, https://archives.library.unimelb.edu.au/nodes/view/523663