@misc{Darwin_Charles_(1809–1882)_The_1898,
 author={Darwin, Charles, (1809–1882)},
 copyright={Rights Reserved - Free Access},
 howpublished={online},
 year={1898},
 publisher={D. Appleton and Company},
 language={eng},
 title={The formation of vegetable mould, through the action of worms, with observation on their habits},
 keywords={Worms, Soil, Earthworms, Humification},
}