| Journal: | Bien común |
| Database: | CLASE |
| System number: | 000242270 |
| ISSN: | 1870-0438 |
| Authors: | Bulás, Juan Manuel |
| Year: | 2005 |
| Season: | Dic |
| Volumen: | 11 |
| Number: | 132 |
| Pages: | 45-47 |
| Country: | México |
| Language: | Español |
| Document type: | Ensayo |
| Approach: | Analítico, descriptivo |
| Disciplines: | Biología |
| Keyword: | Ecología, América del Norte, Medio ambiente, Integración regional |
| Document request | |
