Cast & crew
Encounter on Urban Environment (1971)
Directed by Roger Hart
Crew
| David De Volpi | Director of Photography |
| Hans Oomes | Sound |
| George Croll | Sound |
| Roger Hart | Director |
| Roger Hart | Editor |
| David De Volpi | Director of Photography |
| Roger Hart | Director |
| Hans Oomes | Sound |
| George Croll | Sound |
| Roger Hart | Editor |