Koontz, Harold. Essentials of management / Harold Koontz and Cyril O'Donnell. - 2nd ed. - New Delhi : Mc graw hill, c 1978. - x, 562 p. : ill. ; 23 cm. Includes index. 343 343 Subjects--Topical Terms: Management. Dewey Class. No.: 658 / K837e