Subject
- Computer software -- Development2
- Computer vision2
- Forest policy -- United States -- Bibliography2
- Forest reserves -- United States -- Bibliography2
- Forests and forestry -- United States -- Bibliography2
- Human-computer interaction2
- Linear models (Statistics)2
- United States. Forest Service -- Bibliography2
- Abolitionists -- Great Britain1
- Alfalfa as feed1
- Altitudes -- Measurement1
- Amazon parrots -- Conservation -- Guatemala1
- Amazon parrots -- Guatemala -- Geographical distribution1
- Amazon parrots -- Migration -- Guatemala1
- Angiosarcoma -- Etiology1
- Animal contraception -- Health aspects1
- Antislavery movements -- Great Britain1
- Astragalus (Plants) -- Classification1
- Astragalus (Plants) -- Phylogeny1
- Atmospheric circulation -- Mars (Planet) -- Mathematical models1