Columbia subject headings:
Norway--Foreign relations--1905-
Norway--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Norway.
Harvard subject headings:
Norway--Foreign relations--1905-
Norway--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Norway.
Princeton subject headings:
Norway--Foreign relations--1905-
Norway--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Norway.