| name | mediatype | date | Author | Language | type | Narrative location | Title |
|---|---|---|---|---|---|---|---|
| With "E" of the First Gas | 1919 | William L. Langer | |||||
| An Encyclopedia of World History: Ancient, Medieval, and Modern, Chronologically Arranged | 1972 | William L. Langer | |||||
| The Franco-Russian Alliance 1890-1894 | 1890 | William L. Langer | |||||
| European Alliances and Alignments 1870-1890 | 1870 | William L. Langer | |||||
| The Diplomacy of Imperialism | 1935 | William L. Langer |