1. BTS 304, 1/156/5/1 Vol I—Southern Rhodesia: Arrangements for Rhodesian Troops to pass through the Union—Letter by Rhodesian Secretary of External Affairs to Secretary for Defense, Pretoria, October 1939.
2. DEA 102, A2/2/12/2 Vol. 15–17—Union-Southern Rhodesia Trade Agreement—Memorandum on the Union/Southern Rhodesian Customs Union (Interim) Agreement, no date.
3. HEN Vol. no. 3895 Ref S710 vol. 6—IDC’s T.C. Lloyd comments on Questionnaire to Industries submitted to the Department of Commerce and Industries, 20 August 1945;
4. HEN Vol. no. 3895 Ref S710 vol. 6—A Survey of the Trade Agreement with the Union by T.C. Lloyd, 4 April 1945.
5. HEN Vol. no. 3895 Ref S710 vol. 6—Agreed Summary of the discussions between officials of the governments of Southern Rhodesia and the Union of South Africa, 2–4 October 1946.