title: Toward a theory of planned social change: alternative perspectives and ideas.
authors.forename: R F
authors.initials: RF
authors.lastname: Rich
authors.forename: G
authors.initials: G
authors.lastname: Zaltman
mesh_terms: D006804:Ergonomics; D006040:Goals; D008962:Models, Theoretical; D009934:Organization and Administration; D012922:Social Change; D012939:Social Planning