@misc{Poulton_Edward_Bagnall_(1856–1943)_The_1891,
 author={Poulton, Edward Bagnall (1856–1943)},
 copyright={Public Domain},
 address={London},
 journal={Publications of famous biologists - a collection of prints},
 howpublished={online},
 year={1891},
 publisher={Linnean Society},
 language={eng},
 title={The External morphology of the Lepidopterous Pupa : its relation to that of the other stages and to the origin and history of Metamorphosis. Parts IV and V},
 type={Text},
 URL={http://www.rcin.org.pl/Content/146761/PDF/WA488_182396_19746_s1738.pdf},
 keywords={Insects - Butterflies (Lepidoptera), Butterflies - pupae - external morphology},
}