title: [Malthus and his work--its past and present effect].
authors.forename: R
authors.initials: R
authors.lastname: Ishay
mesh_terms: D005193:Family Planning Services / Q000266:history / Q000639:trends; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011155:Population Control / Q000266:history*