@misc{Cohn_Ferdinand_Julius_(1828-1898)_Die,
 author={Cohn, Ferdinand Julius (1828-1898)},
 address={Breslau},
 howpublished={online},
 publisher={[b.w.]},
 language={ger},
 title={Die Menschheit und die Pflanzenwelt},
 keywords={człowiek, rośliny},
}