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001 | UNA01000040317 | ||
005 | 20120328190645.0 | ||
008 | 080728s1972 000 0 spa d | ||
040 | |a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica | ||
082 | 0 | 4 | |a 574.5 |b P963p |
100 | 1 | |a International Congress of Ecology | |
245 | 1 | 0 | |a Proceedings of the first International Congress Ecology |
650 | 0 | 4 | |a ECOLOGIA |
650 | 0 | 4 | |a CONGRESOS |