Columbia subject headings:
Roland Holst, R. N. (Richard Nicolaüs), 1868-1938--Criticism and interpretation.
Roland Holst, R. N. (Richard Nicolaüs), 1868-1938--Political and social views.
Harvard subject headings:
Princeton subject headings:
Artists, Dutch--20th century--Biography.
Roland Holst, R. N. (Richard Nicolaüs), 1868-1938.