The Library of Congress > Linked Data Service
  Label Vocabulary Concept Subdivision Identifier
1. History LC Subject Headings (LCSH)
Topic General Subdivision sh99005024
Frontier troubles
2. Commerce LC Subject Headings (LCSH)
Topic General Subdivision sh99001412
Commercial trade ; Foreign trade ; Trade
3. Economic conditions LC Subject Headings (LCSH)
Topic General Subdivision sh99005736
Economic history ; Socioeconomic status


Do you need assistance with your search?