English 
Čeština 
La science tchécoslovaque au service du peuple /
| Main Author: | Khás, Ladislav, 1905-1976 |
|---|---|
| Language: | French |
| Published: |
Prague : Orbis, 1955 |
| Physical Description: |
33 s., [12] s. obr. příl. : il. ; 8° |
|
Book