Columbia subject headings:
Harald III, Harðráði, King of Norway, 1015-1066.
Norway--Kings and rulers--Biography.
Harvard subject headings:
Harald III, Harðráði, King of Norway, 1015-1066--Biography.
Harald III, Harðráði, King of Norway, 1015-1066--Travel.
Norway--Kings and rulers--History.
Vikings--Kings and rulers--Biography.
Princeton subject headings: