Columbia subject headings:
Heckenast, Gusztáv, 1811-1878--Correspondence.
Rosegger, Peter, 1843-1918--Correspondence.
Harvard subject headings:
Authors, German--19th century--Correspondence
Heckenast, Gusztáv, 1811-1878--Correspondence.
Rosegger, Peter, 1843-1918--Correspondence.
Princeton subject headings:
Authors, Austrian--Correspondence.
Heckenast, Gusztáv, 1811-1878--Correspondence.
Heckenast, Gusztáv, 1811-1878.
Rosegger, Peter, 1843-1918--Correspondence.
Rosegger, Peter, 1843-1918.