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|---|---|---|---|
| 020 | _a968-50-0004-2 | ||
| 050 | _aQH308.2 B36618 | ||
| 100 | _aBAKER, JEFFREY J.W.,ALLEN, GARLAND E.,GEORGE C. JAIME F.,FIGUEROA DE UPHOFF, INA SHEILA | ||
| 245 | _aBIOLOGIA E INVESTIGACION CIENTIFICA | ||
| 260 | _aFONDO EDUCATIVO INTERAMERICANO1970 | ||
| 650 | _aBIOLOGIA | ||
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