I. Источники

Архивные документы

Великобритания

British Library

Paul Benckendorff (неопубликованная рукопись)

Moura Budberg Interview (British Library Recording C1398/05404)

Cecil of Chelwood Papers

Harold Williams Papers

Cambridge University

CU Library: Hardinge Papers, Andrew Boyle Papers

Churchill College: Alexander Leeper Papers

House of Lords Record Office

Lockhart Diaries

Imperial War Museum

C. Budden Papers

Kings College, London, Liddell Hart Centre,