Columbia subject headings:
Harvard subject headings:
Haushofer, Albrecht, 1903-1945--Criticism and interpretation.
Prisoners' writings, German--19th century--History and criticism.
Prisoners' writings, German--20th century--History and criticism.
Toller, Ernst, 1820-1897--Criticism and interpretation.
Princeton subject headings:
Haushofer, Albrecht, 1903-1945--Criticism and interpretation.
Prisoners' writings, German--19th century--History and criticism.
Prisoners' writings, German--20th century--History and criticism.
Toller, Ernst, 1820-1897--Criticism and interpretation.