Bain, Joe S. 1912- Barriers to new competition : their character and consequences in manufacturing industries / Joe S. Bain. - Cambridge, Mass. : Harvard University Press, c1956. - x, 329 p. ; 24 cm. Bibliography: p[319-321 and index. Subjects--Topical Terms: Monopolies.Manufactures.Competition. Dewey Class. No.: 338.82 / BAB