Ralph, L. Andreano Superconcentration/supercorporation : a collage of opinion on the concentration of economic power / L. Andreano Ralph - Andover : Warner Modular Publications , 1973 - ill. ; 29 cm. Includes bibliographical references and index. Subjects--Topical Terms: EconomicsEconomic concentrationIndustrial concentration Dewey Class. No.: 330 / SUP