Columbia subject headings:
Coast defenses--Germany (East)
Germany (East). Volksmarine--History.
Guided missiles--Germany (East)
Naval art and science--Germany--History--20th century.
Harvard subject headings:
Coast defenses--Germany (East)
Germany (East). Volksmarine--History.
Guided missiles--Germany (East)
Naval art and science--Germany--History--20th century.
Princeton subject headings:
Coast defenses--Germany (East).
Germany (East). Volksmarine--History.
Guided missiles--Germany (East).
Naval art and science--Germany--History--20th century.