Text ( visual ) : unmediated The effective executive / Peter F. Drucker. -- 1st HarperBusiness ed. -- : pbk. -- New York : HarperBusiness , 1993. -- viii, 178 p. ; 21 cm. -- (Harper colophon books). -- Includes index ; First Harper Colophon edition published 1985. -- ISBN 0887306128 ; (BA1980349X) ; https://ci.nii.ac.jp/ncid/BA1980349X Author Heading(s): Drucker, Peter Ferdinand. -- Classification(s): LCC : HD38.25.U6 ; DC19 : 658.4. -- Subject Heading(s): LCSH : Executives -- United States ; LCSH : Decision -- making

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