Robinson, John The economics of imperfect competition / John Robinson - London : Macmillan , 1950 - xii, 352p. : ill. ; 23 cm. - Also 2nd. edition 1969 . Includes index. ISBN: 0333083628 0333102894 Subjects--Topical Terms: Market structurePricesMonopoliesValue Dewey Class. No.: 338.5 / ROB-3