@misc{Darwin_Charles_Robert_(1809–1882)_The_1904,
 author={Darwin, Charles Robert, (1809–1882)},
 copyright={Public Domain},
 address={New York},
 journal={The new science library},
 howpublished={online},
 year={1904},
 publisher={J. A. Hill and Co.},
 language={pol},
 title={The descent of man and selection in relation to sex. v. 1-2 /},
 type={Text},
 URL={http://www.rcin.org.pl/Content/57688/PDF/WA488_5951_1215_Darwin-Descent2.pdf},
 keywords={Evolution, Natural selection, Heredity},
}