Allen, G. C. 1900-1982. Monopoly and restrictive practices / G. C. Allen. - London : George Allen & Unwin, 1968. - 183 p.: ill. ; 22 cm. - Unwin university books. . Includes bibliographicalreferences ( p.178-180 ) and index. Subjects--Topical Terms: Monopolies. Dewey Class. No.: 338.8 ALL