Salter, Arthur, 1881-1975. World trade and its future / by Sir Arthur Salter. - Philadelphia : Univ. of Pennsylvania press, 1936. - 101 p. ; 21 cm. - The William J. Cooper foundation lectures, 1936, Swarthmore college . - William J. Cooper Foundation lectures. . Subjects--Topical Terms: Commerce.Commercial policy.Economic history. Dewey Class. No.: 382 / SAW 1936