Columbia subject headings:
Cape Cod (Mass.)--Geography.
Harvard subject headings:
Cape Cod (Mass.)--Guidebooks.
Coast changes--Massachusetts--Cape Cod--History.
Geology--Massachusetts--Cape Cod--Guidebooks.
Princeton subject headings:
Cape Cod (Mass.)--Guidebooks.
Coasts--Massachusetts--Cape Cod.
Guidebooks.
Natural history--Massachusetts--Cape Cod.