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| 005 | 20130515014438.0 | ||
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| 020 | _a0-13-3790866-7 | ||
| 020 | _ahard cover | ||
| 082 | 0 | 0 | _a574. 526 32 and |
| 100 | 1 | _a"0, . " | |
| 245 | 1 | 0 |
_aa guide to the study of fresh water ecology: _b/ _c .. |
| 250 | _a1 ed. | ||
| 260 |
_ausa : _bprentice-hall _c1972. |
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| 300 |
_a"ix, 182p.; _c24 cm." |
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| 490 | 0 | _acontours:studies of the environment | |
| 504 | _a | ||
| 650 | 0 |
_afresh-water ecology _x |
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_c20135 _d20135 |
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