Jan Calábek
Director
Similar Movies
Documentary
Popular science film about the importance of light for plant life.
Top Billed Cast
| Release Date | 1950-12-31 |
|---|---|
| Runtime | 0m |
| Directors | Jan Calábek, Bedřich Jurda, Jan Calábek, Jindřich Grepl |
| Producer | |
| Writers | Jan Calábek, Jan Calábek |
