Columbia subject headings:
Fire insurance--Canada--Maps--Bibliography--Union lists.
Fire insurance--Mexico--Maps--Bibliography--Union lists.
Fire insurance--United States--Maps--Bibliography--Union lists.
Sanborn Map Company--Bibliography--Union lists.
Harvard subject headings:
Fire insurance--Canada--Maps--Bibliography--Union lists.
Fire insurance--Mexico--Maps--Bibliography--Union lists.
Fire insurance--United States--Maps--Bibliography--Union lists.
Fire risk assessment--Canada--Maps--Bibliography--Union lists.
Fire risk assessment--Mexico--Maps--Bibliography--Union lists.
Fire risk assessment--United States--Maps--Bibliography--Union lists.
Sanborn Map Company--Bibliography--Union lists.
Princeton subject headings:
Fire insurance--Canada--Maps--Bibliography--Union lists.
Fire insurance--Mexico--Maps--Bibliography--Union lists.
Fire insurance--United States--Maps--Bibliography--Union lists.
Sanborn Map Company--Bibliography--Union lists.
Union catalogs.