Columbia subject headings:
Communism--Philosophy--History.
Dialectical materialism.
Habermas, Jürgen.
Historical materialism.
Harvard subject headings:
Communism--Philosophy--History--Congresses.
Dialectical materialism--Congresses.
Habermas, Jürgen--Congresses.
Historical materialism--Congresses.
Princeton subject headings:
Communism--Philosophy--History--Congresses.
Dialectical materialism--Congresses.
Habermas, Jürgen--Congresses.
Historical materialism--Congresses.