Columbia subject headings:
Authors, Norwegian--19th century--Correspondence.
Bjørnson, Bjørnstjerne, 1832-1910.
Harvard subject headings:
Authors, Norwegian--19th century--Correspondence.
Bjørnson, Bjørnstjerne, 1832-1910--Correspondence.
Princeton subject headings:
Authors, Norwegian--19th century--Correspondence.
Bjørnson, Bjørnstjerne, 1832-1910--Correspondence.