Subject
United States Foreign relations
68
Great Britain Foreign relations
65
United States History
37
United States Politics and government
30
Great Britain Politics and government
23
Great Britain Colonies
21
American literature History and criticism
14
United States History Causes
14
Great Britain Colonies History
13
Judicial assistance
13
Modernism (Literature)
13
United States Military relations
13
World War, 1939-1945 Diplomatic history
13
Great Britain History
12
Great Britain Military relations
12
Great Britain Relations
12
English literature History and criticism
11
Extradition
11
History
11
United States Relations
10
Criticism and interpretation
9
World War, 1939-1945
9
World politics
9
Women and literature History
8
Communication of technical information
7
English poetry History and criticism
7
Influence
7
Aeronautics, Commercial Law and legislation
6
Criminal justice, Administration of
6
Great Britain
6
United States Foreign economic relations
6
Women and literature
6
American literature Women authors History and criticism
5
American poetry History and criticism
5
Arts and crafts movement
5
English fiction History and criticism
5
English literature Women authors History and criticism
5
Export controls
5
Great Britain Foreign economic relations
5
Great Britain Social life and customs
5
Nuclear energy Law and legislation
5
Public opinion History
5
United States Civilization
5
Airports
4
American fiction History and criticism
4
Arms transfers Law and legislation
4
Crime
4
Criticism
4
Double taxation
4
Great Britain Civilization
4
more ...