Text ( visual ) : unmediated Diversification and competition / M.A. Utton. -- Cambridge ; New York : Cambridge University Press , 1979. -- x, 113 p. ; 24 cm. -- (Occasional papers / National Institute of Economic and Social Research ; 31). -- Includes bibliographical references and index. -- ISBN 0521227259 ; (BA01095709) ; https://ci.nii.ac.jp/ncid/BA01095709 Author Heading(s): Utton, M. A. (Michael A.). -- Classification(s): LCC : HC260.D6 ; DC : 338.8/0941 ; NDLC : DH31. -- Subject Heading(s): LCSH : Diversification in industry -- Great Britain ; LCSH : Industrial concentration -- Great Britain ; LCSH : Conglomerate corporations -- Great Britain