Columbia subject headings:
Tides--Atlantic Ocean.
Tides--Mediterranean Sea.
Harvard subject headings:
Tides--Atlantic Ocean.
Tides--Mediterranean Sea.
Princeton subject headings:
Tides--Atlantic Coast (Africa)--Tables--Periodicals.
Tides--Atlantic Coast (Europe)--Tables--Periodicals.
Tides--Europe--Tables--Periodicals.
Tides--Mediterranean Sea--Tables--Periodicals.