Forrester, Jay W. Urban dynamics / Jay W. Forrester. - Cambridge, Mass.,: M.I.T. Press , 1969 - xiii, 285 p. : illus. ; 26 cm. Includes Bibliography: p. 281. Subjects--Topical Terms: Cities and towns --Mathematical models.City planning --Data processing. Dewey Class. No.: 307.76 / F7708 Ur