Columbia subject headings:
Emergency management--Korea (South)
Ferryboat disasters--Korea (South)--Chindo-gun.
Sewŏrho (Ferry)
Harvard subject headings:
Disaster relief--Korea (South)
Emergency management--Korea (South)
Ferryboat disasters--Korea (South)
Sewŏrho (Ferry)
Shipwrecks--Korea (South)--Chindo-gun.
Princeton subject headings: