Columbia subject headings:
Harvard subject headings:
Future, The
Futurologists--Germany--Biography.
History, Modern--20th century
Jungk, Robert, 1913-1994--Contributions in forecasting.
Social change--Forecasting.
Princeton subject headings:
Future, The.
Futurologists--Germany--Biography.
History, Modern--20th century.
Jungk, Robert, 1913-1994--Contributions in forecasting.
Social change--Forecasting.