@misc{Poulton_Edward_Bagnall_(1856–1943)_The_1919,
 author={Poulton, Edward Bagnall (1856–1943)},
 copyright={Public Domain},
 address={[unknown]},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1919},
 publisher={[unknown]},
 language={eng},
 title={The proportions of the female forms of Papilio Polytes, l., in the different parts of its geographical range},
 type={Text},
 URL={http://www.rcin.org.pl/Content/170298/PDF/WA488_204179_19746_s1948.pdf},
}