Publication
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Les types des roches basiques et ultrabasiques qu’on rencontre dans la partie occidentale de la Galice (Espagne) Article
Leidse Geologische Mededelingen, 36(1), 235-242.January 1967
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Beneficiación de minerales densos en las playas de Galicia Nuevas Técnicas y Dispositivos Article
Leidse Geologische Mededelingen, 36(1), 305-318.January 1967
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Stratigraphy, structure and metallization Piskahegan-Rolling Dam area (northern Appalachians, New Brunswick, Canada) Article
Leidse Geologische Mededelingen, 40(1), 79-120.January 1967
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The Heteroptera of the Netherlands Antilles – VI Notonectidae Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 24(1), 157-189.January 1967
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The non-marine Mollusca of St. Martin (Lesser Antilles) Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 24(1), 118-145.January 1967
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Frogs of the genus Eleutherodactylus in the Lesser Antilles Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 24(1), 1-62.January 1967
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New records of Chiggers from the West Indies Article
Studies on the Fauna of Curaçao and other Caribbean Islands, 24(1), 146-156.January 1967
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Las rocas catazonales de la región de Cabo Ortegal Article
Leidse Geologische Mededelingen, 36(1), 243-254.January 1967