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005 | 20071026112250.0 | ||
008 | 070507 ||||| und | ||
035 | |a 8784063 | ||
040 | |a Sistema de Bibliotecas de la Universidad de Costa Rica | ||
082 | 0 | |a 570.78 |b P463L |2 21 | |
245 | 1 | 0 | |a Environmental science |
912 | |a 26-OCT-2007 - BARQUERO SANABRIA, PAOLA | ||
917 | |a 07-MAY-2007 - SALAZAR ALVAREZ, CLAUDIO |