@book{87268,
	author = {Kropotkin, Piotr Alekseevich,  and Salvoechea, Fermín.},
	title = {Campos, fábricas y talleres / },
	editor = {Tip. de Idamor Moreno)},
	publisher = {[s.n., },
	year = {1900?] (},
	address = {Madrid : }
}