title: Maintaining the quality of American life.
mesh_terms: D004467:Economics; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011640:Public Policy; D011788:Quality of Life; D012922:Social Change / Q000266:history*; D012945:Social Values; D014481:United States