Columbia subject headings:
Harvard subject headings:
Maier, Otto Julius, 1930-
Maier, Otto Julius, 1930---Interviews.
Publishers and publishing--Germany--Biography
Ravensburger AG--History.
Princeton subject headings:
Interviews.
Maier, Otto Julius, 1930-
Maier, Otto Julius, 1930---Interviews.
Publishers and publishing--Germany--Biography.
Ravensburger AG--History.