Columbia subject headings:
Kautsky, Karl, 1854-1938.
Socialism--Germany--History.
Socialists--Germany--Biography.
Sozialdemokratische Partei Deutschlands--History.
Harvard subject headings:
Germany--Intellectual life.
Kautsky, Karl, 1854-1938.
Socialism--Germany
Socialism--Germany--History
Socialists--Germany--Biography
Sozialdemokratische Partei Deutschlands--History.
Princeton subject headings:
Communist revisionism--History.
Historical materialism--History.
Kautsky, Karl, 1854-1938.
Socialism--Germany--History.