Columbia subject headings:
Harvard subject headings:
Archaeology--Delaware--History.
Archaeology--Maryland--History.
Delaware--Antiquities.
Indians of North America--Delaware--Bibliography.
Indians of North America--Maryland--Bibliography.
Maryland--Antiquities.
Princeton subject headings:
Archaeology--Delaware--History.
Archaeology--Maryland--History.
Delaware--Antiquities.
Indians of North America--Delaware--Bibliography.
Indians of North America--Maryland--Bibliography.
Maryland--Antiquities.