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| 005 | 20240519151030.0 | ||
| 008 | 030327s1970 xxu011 vlspa d | ||
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_a333.716 _bPRO 1970 |
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_aProblemas de conservación _bnuestros recursos naturales _cEncyclopaedia Britannica Educational Corporation |
| 264 |
_aEstados Unidos _bEBE _c1970 |
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_a1 videocasete(11 min.) _bson., col _c1/2 plg |
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| 440 | 0 | _aEnvironment in crisis | |
| 500 | _aTraducción de: Problems of conservation our natural resources | ||
| 538 | _aVHS | ||
| 546 | _aDoblaje al español | ||
| 650 | 4 |
_aRecursos naturales _xconservación |
|
| 650 | 4 |
_aRecursos naturales _xprotección |
|
| 710 | 1 | _aEncyclopaedia Britannica Educational Corporation | |
| 905 | _aelectrónicos | ||
| 944 | _aGLOBAL | ||
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| 950 | _c20030327 | ||
| 950 | _c20060109 | ||
| 950 | _c20111027 | ||
| 950 | _c20140630 | ||
| 950 | _c20230914 | ||
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