Welwitsch, Friedrich (Friedrich Martin Josef), 1806-1872.

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1 work

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Online
Catalogue of the African plants collected by Dr. Friedrich Welwitsch in 1853-61.
British Museum (Natural History) Department of BotanyDate: 1896-1901

1 work

Books
Friedrich Welwitsch, vida e obra / por Helmut Dolezal ; traduzido e anotado por A. W. Exell & E. J. Mendes.
Dolezal, Helmut, 1912-Date: 1974