| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Discovery of Yellowstone Park | Langford, Nathaniel Pitt, 1832-1911 | en | 2004-02-01 | ||||
| The King Nobody Wanted | Langford, Norman F., 1914- | en | Lear, John [Illustrator] | 2006-08-20 |