title: Thirty years of demography and Demography.
authors.affiliation: International Institute for Applied Systems Analysis, Laxenburg, Austria.
authors.forename: N
authors.initials: N
authors.lastname: Keyfitz
mesh_terms: D003710:Demography; D049673:History, 20th Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history*; D012106:Research; D014481:United States