Columbia subject headings:
Art, Modern--20th century.
Arts--History--20th century.
Werckmeister, O. K. (Otto Karl), 1934---Bibliography.
Harvard subject headings:
Aesthetics, Modern--20th century.
Art criticism--History--20th century.
Art--Political aspects
Arts and society
Arts, Modern--20th century
Arts--Political aspects
Werckmeister, O. K. (Otto Karl), 1934---Bibliography.
Princeton subject headings: