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SP68 Freshwater Invertebrates Price: £33.00 |
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SP67 Macroinvertebrates for Biotic Assessment Price: £25.00 |
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SP66 Mayfly Larvae Price: £27.00 |
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SPEC15 The World of Lakes: Lakes of the World Price: £25.00 |
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SP62 Freshwater Fishes Price: £25.00 |
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