Columbia subject headings:
Harbors--Periodicals.
Hydraulic engineering--Periodicals.
Ocean engineering--Periodicals.
Shore protection--Periodicals.
Waterways--Periodicals.
Harvard subject headings:
Harbors--Periodicals
Hydraulic engineering--Periodicals
Ocean engineering--Periodicals.
Shore protection--Periodicals.
Waterways--Periodicals.
Princeton subject headings:
Harbors--Periodicals.
Hydraulic engineering--Periodicals.
Ocean engineering--Periodicals.
Periodicals.
Shore protection--Periodicals.
Waterways--Periodicals.