- Technology + Social aspects -- California, Northern
- Veterans' hospitals -- California, Northern -- Evaluation
- Carbon + Isotopes -- California, Northern
- Wilderness areas + Law and legislation -- California, Northern
- Fires -- California, Northern -- Remote-sensing images
- Families -- California, Northern -- Juvenile fiction
- Wildlife refuges -- California, Northern -- Maps
- Land use, Rural + Environmental aspects -- California, Northern
- Submarine topography -- California, Northern -- Maps
- Geology -- California, Northern
- Recreation areas + Law and legislation -- California, Northern
- Mines and mineral resources -- California, Northern
- Vintners -- California, Northern -- History -- 20th century