Douglas Alexander Spalding (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Douglas Alexander Spalding" in German language version.

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1zdb-katalog.de

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doi.org

Douglas Alexander Spalding: On instinct. In: Nature. Band 6, Nr. 154, 1872, S. 485–486, doi:10.1038/006485a0.

zdb-katalog.de

Douglas Alexander Spalding: Instinct, with original observations on young animals. In: Macmillan's Magazine. Band 27, 1873, ZDB-ID 339417-7, S. 282–293.