| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Final Report of the Louisiana Purchase Exposition Commission | Louisiana Purchase Exposition Commission | en | 2004-08-23 | ||||
| Memoir of the Proposed Territory of Arizona | Mowry, Sylvester, 1830-1871 | en | Gadsden Purchase -- Arizona; Arizona -- Politics and government | 2000-11-01 | |||
| The Purchase Price | Hough, Emerson, 1857-1923 | en | 2004-03-01 |