Columbia subject headings:
Great Britain--History--Richard I, 1189-1199--Juvenile literature.
Richard I, King of England, 1157-1199--Juvenile literature.
Harvard subject headings:
Great Britain--History--Richard I, 1189-1199--Juvenile literature.
Richard I, King of England, 1157-1199--Juvenile literature.
Richard I, King of England, 1157-1199.
Princeton subject headings:
Great Britain--History--Richard I, 1189-1199--Juvenile literature.
Richard I, King of England, 1157-1199.