学科
- Rhythm and blues musicians2
- Rites & ceremonies2
- Roofs2
- Roses2
- Ruins2
- San francisco bay (calif.)2
- State parks & reserves2
- Subject: African American athletes2
- Subject: Age distribution (Demography)2
- Subject: Geology, Stratigraphic2
- Subject: Sex distribution (Demography)2
- Suspension bridges2
- Tanks (Military science)2
- Theaters2
- Topical: Sheep2
- Topical: Soldiers2
- Traffic signs & signals2
- Vines2
- War damage2
- Winnebago 2