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1gan Hagen, Victor Wolfgang von, 1908-Pynciau “...Darwin, Charles, 1809-1882....”
Cyhoeddwyd 1949
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2gan Wulf, AndreaTabl Cynhwysion “...Return to Berlin ; Russia ; Evolution and nature : Charles Darwin and Humboldt ; Humboldt's Cosmos ; Poetry, science and nature : Henry David Thoreau and Humboldt -- Part V. ...”
Cyhoeddwyd 2015
Llyfr