Columbia subject headings:
Filial piety.
Harvard subject headings:
Children's stories
Etna, Mount (Italy)--Juvenile literature.
Meliss, Lambert.
Netherlands--History--Eighty Years' War, 1568-1648--Juvenile literature.
Parent and child--Juvenile literature
Volcanoes--Juvenile literature
War--Juvenile literature
Princeton subject headings:
Filial piety.