Columbia subject headings:
Ahab, Captain (Fictitious character)--Fiction.
Mentally ill--Fiction.
Ship captains--Fiction.
Whales--Fiction.
Whaling ships--Fiction.
Whaling--Fiction.
Harvard subject headings:
Ahab, Captain (Fictitious character)--Fiction.
Mentally ill--Fiction.
Ship captains--Fiction
Whales--Fiction
Whales--Juvenile fiction.
Whaling
Whaling ships--Fiction
Whaling--Fiction
Whaling--Juvenile fiction.
Princeton subject headings:
Fiction.