Weymar, F. Helmut. The dynamics of the world cocoa market - Cambridge, Mass. : M.I.T., 1968 - 253 p. - M.I.T. Monographs in economics ; 9 . - M.I.T. Monographs in economics ; 9 . LCCN: 53639 Subjects--Topical Terms: Cacao--Mercadeo. Dewey Class. No.: 338.17374 / W4