 | MIXING AND FLUSHING OF TIDAL EMBAYMENTS IN THE WESTERN DUTCH WADDEN SEA | ZIMMERMAN,J.T.F. | € 15.00 |
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 | MÉMOIRE SUR LA LIMACINA ARCTICA | BENEDEN,P.J. v. | € 10.00 |
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 | MÉMOIRE SUR L'ARGONAUTE | BENEDEN,P.J. van | € 25.00 |
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 | MÉMOIRE SUR LES CRUSTACÉS DE BELGIQUE | KONINCK,L. de | € 20.00 |
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 | MOANA. ONTDEKKINGSTOCHTEN EN ONDERZEE-JACHT IN ALLE WERELDDELEN | GORSKY,BERARD | € 15.00 |
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 | MODERN METHODS OF ICE FISHING | GRUENWALD,T. | € 10.00 |
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 | MODERNE AQUARIUM TECHNIEK | BOHEMEN,JAN van | € 10.00 |
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 | MODIFICATIONS HËPATIQUES LIÉES AU CYCLE OVARIEN CHEZ DEUX POISSONS OVOVIPARES; XIPHOPHORUS HELLERI ET LESBISTES RETICULATES | ZAHND,J.P. | € 10.00 |
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 | MOLLUSCAN BIOCOENOSES AND THANATOCOENOSES IN THE RIA DE AROSA,GALICIA, SPAIN | CADÉE,G.C. | € 15.00 |
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 | MOLLUSKS | BARTSCH,P | € 10.00 |
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 | MOLLUSQUES TERRESTRES RECOLTES/ ADDITIONS AUX MOLLUUSQUES TERESTRES.. MADAGASCAR | SOULA,M./ FISCHER-PIETTE | € 20.00 |
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 | MONITORING OF CHEMISTRY, MACROPHYTES, AND DIATOMS IN ACIDIFYING MOORLAND POOLS RIN-rapport | DAM,H. VAN | € 10.00 |
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 | MONOGRAPH OF THE INDO-AUSTRALIAN CLAUSILIIDAE ( GASTROPODA, PULMONATA, CLAUSILIIDAE, PHAEDUSINAE) | LOOSJES,F.E. | € 35.00 |
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 | MONOVALENT IONS AND GLUCOSE ABSORPTION IN GOLDFISH INTESTINE | ZUIDEMA,T. | € 10.00 |
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 | MONSTERS OF THE DEEP | PIROTTA,SAVIOUR | € 10.00 |
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 | MONSTERS VAN RIJNLAND | MUSEUM BOERHAVE | € 5.00 |
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 | MOPNITORING AND PREDICTION OF PHYTOPLANKTON DYNAMICS IN THE NORTH SEA | BLAUW.ANOEK N. | € 10.00 |
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 | MORFOLOGISCHE PROCESSEN IN DE ONDIEPE OEVERZONE VAN STAGNANTE BEKKENS EEN VOORONDERZOEK | GOEDHEER, G.J. | € 5.00 |
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 | MORPHOLOGIE UND BIOLOGIE DER ALGEN 3 vols | OLTMANNS,FR. | € 60.00 |
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 | MORPHOLOGIE UND BIOLOGIE DER ALGEN 2 vols | OLTMANSNS, FRIEDRIECH | € 20.00 |
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