Innis, Harold Adams, 1894-1952. Empire and communications / Harold Adams Innis. - Oxford : Clarendon Press, 1950. - 230 p. ; 20 cm. - Belt lectures on imperial economic history [1948] . - 1948. Belt lectures ; . Includes index. Subjects--Topical Terms: Communication. Dewey Class. No.: 411 / INE 1950