El grano se hizo espiga (Un siglo de progreso agrícola)
| MPAA Rating: | NR |
| Genre: | Documentary, History, Short |
| Country: | Spain |
| Directed By: | Pedro Baudín |
| Written By: | Ramón Beneyto, Pedro Baudín |
| Cast: | Teófilo Martínez |
| In Theaters: | N/A |
| Runtime: | 16 minutes |
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