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_916020 _aMargalef, Ramón, _eautor |
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_aTeoría de los sistemas ecológicos / _cRamon Margalef. |
| 250 | _a2a ed. | ||
| 264 | 3 | 1 |
_aMéxico : _bAlfaomega, _c2002. |
| 300 |
_a290 páginas : _bilustraciones |
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| 336 |
_atexto _btxt _2rdacontent |
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| 337 |
_ano mediado _bn _2rdamedia |
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| 338 |
_avolumen _bnc _2rdacarrier |
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| 504 | _aIncluye bibliografía: p. 275-290. | ||
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_91113 _aEcología. |
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