Columbia subject headings:
Publishers and publishing--Germany--History.
Harvard subject headings:
Publishers and publishing--Germany--Aachen--History--20th century.
Publishers and publishing--Germany--Aachen--History--21st century.
Rimbaud Verlag--History.
Princeton subject headings:
Publishers and publishing--Germany--Aachen--History--20th century.
Publishers and publishing--Germany--Aachen--History--21st century.
Rimbaud Verlag--History.