title: Engels, Marx, Malthus, and the machine.
authors.forename: J M
authors.initials: JM
authors.lastname: Sherwood
mesh_terms: D003710:Demography; D004470:Economics, Medical / Q000266:history*; D005858:Germany; D049711:History, Modern 1601-; D011057:Politics; D013223:Statistics as Topic / Q000266:history*; D006113:United Kingdom