Works by Helmut De Terra

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  1.  2
    Alexander von Humboldt. Erschliesser einer neuen WeltEwald Banse.Helmut de Terra - 1960 - Isis 51 (2):217-218.
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    Forerunners of Darwin: 1745-1859Bentley Glass Owsei Temkin William L. Straus, Jr.Helmut de Terra - 1960 - Isis 51 (2):212-213.
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  3. Perspektiven Teilhard de Chardins.Helmut De Terra - 1966 - München,: Beck. Edited by Ernst Benz.
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