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Le Léman, monographie limnologique; Tome 2 (French Edition): Forel, F. A. (François Alphonse) 1841-: 9781373039545: Amazon.com: Books
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30-Forel-scale covering the blue to green region. The eleven tubes are... | Download Scientific Diagram
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Press photographerJacquesPicard in Bracciano with his submarine "Fa Forel", July... at auction | LOT-ART
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