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| STUDIES ON LAKE VECHTEN AND TJEUKERMEER, THE NETHERLANDS 25th anniversary of the Limnological Institute of the Royal Netherlands Academy of Arts and Science | GULATI,R.D. / PARMA,S. | € 15.00 |
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| STUDIES ON LEARNING IN GOLDFISH Carassius auratus (L.) | MECHÉ, A.P.van der | € 10.00 |
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| STUDIES ON THE GENUS DAPHNIA O.F.MULLER | BERG,KAJ | € 20.00 |
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| STUDY OF MIGRATORY PATTERNS OF FISH AND SHELLFISH TROUGH A NATURAL PASS | KING,B.D. | € 20.00 |
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| SURVIVAL STRATEGIES OF THE ALGAE | FRYXELL,GRETA A. | € 45.00 |
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| SURVIVORS IN ARMOR turtles, tortoises & terrapins | ORENSTEIN,R. | € 20.00 |
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| SUSPENDED MATTER IN THE AQUATIC ENVIRONMENT | EISMA,DOEKE | € 45.00 |
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| SUSTAINABILITY, LIVELIHOODS, PRODUCTION AND EFFORT SUPPLY IN A DECLINING FISHERY, THE CASE OF KENYA'S LAKE VICTORIA FISHERIES | IKIARA,M. Muriira | € 10.00 |
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| SUSTAINING MARINE FISHERIES | NATIONAL RESEARCH COUNCIL | € 10.00 |
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| SUSTAINING THE SOIL indigenous soil and water conservation in Africa | REIJ,CHRIS / SCOONES,IAN / TOULMIN,CAMILLA | € 10.00 |
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