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|a 314.86
|2 1991
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| 100 |
1 |
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|a Ehrlich, Paul R.
|9 423748
|
| 700 |
1 |
|
|a Ehrlich, Anne H.
|9 423749
|
| 245 |
1 |
0 |
|a La explosión demográfica :
|b El principal problema ecológico /
|c Paul R. Ehrlich, Anne H. Ehrlich.
|
| 260 |
|
|
|a Barcelona :
|b Salvat,
|c 1993.
|
| 300 |
|
|
|a xi, 334 p.
|
| 490 |
0 |
|
|a Biblioteca científica Salvat ;
|v 3
|
| 500 |
|
|
|a Edición original: The population explosion. New York : Simon and Schuster, [199_?].
|
| 690 |
1 |
4 |
|a Sociología
|9 3
|
| 650 |
2 |
4 |
|a Demografía
|9 18092
|
| 650 |
2 |
4 |
|a Población mundial
|9 482238
|
| 650 |
2 |
4 |
|a Crecimiento demográfico
|9 480525
|
| 650 |
2 |
4 |
|a Superpoblación
|9 482794
|
| 650 |
2 |
4 |
|a Problemas demográficos
|9 479653
|
| 650 |
2 |
4 |
|a Producción alimentaria
|9 479658
|
| 650 |
2 |
4 |
|a Escasez de alimentos
|9 481014
|
| 650 |
2 |
4 |
|a Condiciones de vida
|9 480415
|
| 650 |
2 |
4 |
|a Ecología
|9 20378
|
| 650 |
2 |
4 |
|a Crisis ecológica
|9 21521
|
| 650 |
2 |
4 |
|a Equilibrio ecológico
|9 480992
|
| 650 |
2 |
4 |
|a Cambios ambientales
|9 480209
|
| 650 |
2 |
4 |
|a Recursos naturales
|9 20475
|
| 942 |
|
|
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| 934 |
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