| Journal: | Política económica (México, D.F.) |
| Database: | CLASE |
| System number: | 000083498 |
| ISSN: | 0185-8238 |
| Year: | 1978 |
| Season: | May-Jun |
| Volumen: | 7 |
| Number: | 3 |
| Pages: | 274-277 |
| Country: | México |
| Document type: | Nota breve o noticia |
| Approach: | Divulgación |
| Disciplines: | Economía |
| Keyword: | Economía del transporte, México, Metro |
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