Analysis of information sources in references of the Wikipedia article "The Descent of Man, and Selection in Relation to Sex" in English language version.
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: ISBN / Date incompatibility (help) Darwin, Charles (1871). The Descent of Man, and Selection in Relation to Sex. Vol. 1 (1st ed.). London: John Murray. ISBN 978-0-8014-2085-6. Retrieved 18 June 2009. {{cite book}}
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