Tinbergen, Jan, The dynamics of business cycles : a study in economic fluctuations/ Jan Tinbergen and J.J. Polak. - London ; Routledge & K. Paul , 1950. - 366 p. ; 25 cm. , ISBN: MBK1225 Subjects--Topical Terms: Business cycles.--- Dewey Class. No.: 338.542 / Dy