Lippitt, Ronald. The dynamics of planned change; a comparative study of principles and techniques [by] Ronald Lippitt, Jeanne Watson [and] Bruce Westley. Under the general editorship of Willard B. Spalding. - New York, Harcourt, Brace [1958] - 312 p. 21 cm. LCCN: 58000898 Subjects--Topical Terms: Change (Psychology) LC Class. No.: BF637.C4 / L5 Dewey Class. No.: 303.4 / LID 1958