Topic
- Labor laws and legislation5
- Military education--Law and legislation5
- Public works--United States5
- Astronomy4
- Creek Indians.4
- Crime--United States4
- Military budget4
- Petroleum industry and trade--United States4
- Political corruption4
- United States--Armed Forces--Officers4
- Womens health4
- Business--United States.3
- Cold War3
- Democratic Party (U.S.)3
- Education3
- Educational policy--United States3
- Health insurance--Law and legislation--United States3
- Meteorology--United States3
- Political conventions--United States3
- Public housing3
