@misc{Schmidt_Oscar_Eduard_(1823–1886)_The_1897,
 author={Schmidt, Oscar Eduard (1823–1886)},
 copyright={Public Domain},
 address={New York},
 howpublished={online},
 year={1897},
 publisher={D. Appleton and Co.},
 language={eng},
 title={The doctrine of descent and darwinism},
 URL={http://rcin.org.pl/Content/1645/PDF/WA488_4188_1240_Schmidt-The-doctrine-of-descent.pdf},
 keywords={Evolution},
}