Columbia subject headings:
Kinkel, Gottfried, 1815-1882--Criticism and interpretation.
Kinkel, Gottfried, 1815-1882--Political and social views.
Harvard subject headings:
Kinkel, Gottfried, 1815-1882--Criticism and interpretation.
Kinkel, Gottfried, 1815-1882--Political and social views.
Princeton subject headings:
Kinkel, Gottfried, 1815-1882--Criticism and interpretation.
Kinkel, Gottfried, 1815-1882--Political and social views.