| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Is Mars habitable? A critical examination of Professor Percival Lowell's book "Mars and its canals," with an alternative explanation | Wallace, Alfred Russel, 1823-1913 | en | Lowell, Percival, 1855-1916. Mars and its canals; Mars (Planet) | 2004-01-01 |