| Journal: | Comercio exterior |
| Database: | CLASE |
| System number: | 000079560 |
| ISSN: | 0185-0601 |
| Year: | 1979 |
| Season: | Ago |
| Volumen: | 29 |
| Number: | 8 |
| Pages: | 835-838 |
| Country: | México |
| Document type: | Artículo |
| Approach: | Analítico |
| Disciplines: | Geografía |
| Keyword: | Geografía económica y regional, México, Petróleo |
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