Subject
- Diplomatic relations20
- Economics20
- History and criticism20
- Philosophy20
- Corporations19
- Literature19
- American literature18
- World War, 1939-194518
- International relations17
- Theater17
- World politics17
- Business16
- Motion pictures16
- Colonies15
- Economic history15
- History, Modern15
- American newspapers14
- Intellectual life14
- Psychology14
- Religion14