Liebich, Ferdinand Karl, 1909- Liebich, Ferdinand Karl, 1909-
Removing taxes on knowledge
[by F. K. Liebich]
- [Paris] Unesco [1969]
- Reports and papers on mass communication ; no. 58 .
- United Nations Educational, Scientific and Cultural Organization. [Document] COM/69.XVII.58A .
- [Document] (Unesco) ; COM/69.XVII.58. .