Problems of conservation, our natural resources /
Sumario: Muestra la importancia de los recursos naturales y su conservacion.
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| Format: | Book |
| Language: | Spanish |
| Published: |
Chicago, III. :
Encyclopaedia Britannica Educational Corp,
c1970.
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| Subjects: |
| Summary: | Sumario: Muestra la importancia de los recursos naturales y su conservacion. |
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| Item Description: | En espanol. En: Natural selection. -- Chicago, Ill. : Enciclopaedia Britannica Educational Corporation, c1983. |
| Physical Description: | 1 videocasete (VHS) (11 min.) :, sonoro color ; 1/2 plg. |