Columbia subject headings:
Verlag Helmut Küpper Vormals Georg Bondi.
Harvard subject headings:
Bondi, Georg, 1865-
Küpper, Helmut.
Publishers and publishing--Germany.
Verlag Helmut Küpper Vormals Georg Bondi.
Princeton subject headings:
Bondi, Georg, 1865-
Küpper, Helmut.
Publishers and publishing--Germany.
Verlag Helmut Küpper Vormals Georg Bondi.