Crovitz, Herbert F., 1932- Galton's walk; methods for the analysis of thinking, intelligence and creativity/ [by] Herbert F. Crovitz. - New York, Harper & Row [1970] - xii, 159 p. illus. Bibliography: p. 153-156. Subjects--Personal Names: Galton, Francis, 1822-1911. Subjects--Topical Terms: Thought and thinking. LC Class. No.: BF455.C76 1970