Columbia subject headings:
Canals, Interoceanic.
Suez Canal (Egypt)
Suez Canal (Egypt)--History.
Harvard subject headings:
Canals, Interoceanic.
Suez Canal (Egypt)
Suez Canal (Egypt)--History.
Princeton subject headings:
Canals, Interoceanic.
Suez Canal (Egypt)
Suez Canal (Egypt)--History.