Facts
- Language
- English
- Project Gutenberg No.
- 19229
- Released on Project Gutenberg
- September 9, 2006
- Bookshelves
- Science-Fiction & Fantasy, History - Modern (1750+), Politics, Economics
- Subjects
- Civilization, Twentieth century – Forecasts, Communication and traffic, Social prediction
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)