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| STRANDVONDSTEN over de natuur van zee, strand en duin | BROEK,JOS VAN DEN | € 5.00 |
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| STRANFÜHRER Naturführer für die Nordseeküste | OOSTERBAAN,ARTHUR | € 5.00 |
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| STRIGA HERMONTHICA SEE BANK DYNAMICS; process quantification and modelling | MOURIK,Th.A. v. | € 10.00 |
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| STRIJD OM HET STRAND. ZEESCHILDPAD VS TOERIST | GESSEL,PATRICIA van | € 10.00 |
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| STROMENLAND de wereld rond de westerschelde | SCHOOTS,HANS | € 5.00 |
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| STUDIEN UBER DIE SPHAGNICOLEN RHIZOPODEN DER NIEDERLANDISCHEN FAUNA | HOOGENRAAD,H.R. | € 10.00 |
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| STUDIES IN BIOLOGY NO.62: MARINE ZOOPLANKTON | WICKSTEAD,J.H. | € 5.00 |
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| STUDIES IN FLAT FISHES OF PORTO NOVO WATERS | RAMANATHAN,N. | € 55.00 |
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| STUDIES IN HONOUR OF DR. PIETER WAGENAAR HUMMELINCK ( Natuurwetenschappelijke Studiekring voor Suriname en de Nederlandse Antillen no. 123 ) | STEEN,L.J. van der | € 10.00 |
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| STUDIES OF ANABANDID FISHES | FORSELIUS,STEN | € 25.00 |
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| STUDIES OF PARYDRINAE (DIPTERA: EPHYDRIDAE), II: A REVISION OF THE SHORE \FLY GENUS PELINOIDES CRESSON | MATHIS,W.N. | € 10.00 |
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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 BLACK GOBY(GOBIUS NIGER,GORBIIDAE,PISCES) IN THE VEERSE MEER,SW NETHERLANDS | VAAS,K.F. a.o. | € 5.00 |
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| STUDIES ON THE CYCLE OF ELEMENTS IN FRESH WATER | GOLTERMAN, H.L. | € 10.00 |
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| STUDIES ON THE CYCLE OF ELEMENTS IN FRESH WATER | GOLTERMAN,H.l. | € 10.00 |
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| STUDIES ON THE CYCLE OF ELEMENTS IN FRES-WATER | GOLDERMAN,H.L. | € 10.00 |
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| STUDIES ON THE GENUS DAPHNIA O.F.MULLER | BERG,KAJ | € 20.00 |
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