The formation of vegetable mould : through the action of worms, with observatins on their habits

Darwin, Charles, 1809-18822010-01-082010-01-081892http://hdl.handle.net/10272/2296Localización: CIB 1760328 p.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/The formation of vegetable mould : through the action of worms, with observatins on their habitsbookopen access