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|a Ondarza, Raúl N.
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|a SOS salvemos la tierra /
|c Raúl N. Ondarza ; Revisora técnica Dagmar Gerdes Barkow.
|
| 260 |
|
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|a México :
|b Editorial Trillas,
|c ©2011.
|
| 300 |
|
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|a 210 páginas :
|b ilustraciones a color ;
|c 24 cm.
|
| 500 |
|
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|a Incluye índice temático y glosario
|
| 504 |
|
|
|a Incluye referencias bibliográficas
|
| 505 |
2 |
|
|a Nuestro planeta tierra -- Calentamiento global -- La ecología y las biosfera -- Amenazas a la diversidad de los seres vivos -- Los ciclos -- La atmósfera -- El agua en el planeta -- La superficie terrestre -- Medidas para proteger nuestro ambiente
|
| 650 |
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|a Recursos naturales
|2 Armarc
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| 650 |
2 |
7 |
|a Protección del medio ambiente
|2 Armarc
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| 650 |
2 |
7 |
|a Tierra
|2 Armarc
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| 650 |
2 |
7 |
|a Medio ambiente
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|a Agua
|2 Armarc
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|a Contaminación
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| 650 |
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7 |
|a Conservación de los recursos naturales
|2 Armarc
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| 650 |
2 |
7 |
|a Gestion ambiental
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|a Gerdes Barkow, Dagmar
|e revisora técnica
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