v. 1. A guide to the archives of selected organisations and societies.
v. 2. A guide to the private papers of selected public servants.
v. 3. A guide to the private papers of members of Parliament: A-K.
v. 4. A guide to the private papers of members of Parliament: L-Z.
v. 5. A guide to the private papers of selected writers, intellectuals, and publicists.
v. 6. First consolidated supplement.