Columbia subject headings:
Architecture--Maryland--Bel Air (Harford County)
Bel Air (Harford County, Md.)--Buildings, structures, etc.
Historic buildings--Maryland--Bel Air (Harford County)
Harvard subject headings:
Architecture--Maryland--Bel Air (Harford County)
Buildings--Maryland--Bel Air (Harford County).
Historic buildings--Maryland
Princeton subject headings:
Architecture--Maryland--Bel Air.
Bel Air (Harford County, Md.)--Buildings.
Historic buildings--Maryland--Bel Air.