| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Crops and Methods for Soil Improvement | Agee, Alva, 1858-1943 | en | Fertilizers; Soils | 2007-12-02 | |||
| Right Use of Lime in Soil Improvement | Agee, Alva, 1858-1943 | en | Lime; Liming of soils | 2008-05-08 |