Duro pero seguro
| Image |  |
|---|---|
| Description | 1978 film |
| Author/s |
screenwriter: Alfredo Varela Jr. Damián Acosta Esparza Fernando Cortés composer: Sergio Guerrero director: Fernando Cortés |
| Publication date | March 2, 1978 |
| Language | |
| Country of origin | Mexico |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |