Columbia subject headings:
Harvard subject headings:
Adventure stories.
Belgium--Description and travel.
Belgium--History.
Children's stories
Educators--Juvenile fiction.
Money--Juvenile fiction.
Netherlands--Description and travel.
Netherlands--History.
Sailors--Juvenile fiction.
School discipline--Juvenile fiction.
Schools--Juvenile fiction
Seafaring life--Juvenile fiction.
Voyages and travels
Young men--Juvenile fiction.
Princeton subject headings:
Belgium--Description and travel.
Children's stories.
Fiction.
Netherlands--Description and travel.