Koontz, H., & O'Donnell, C. (1977). Essentials of management (2. ed., 1. printing.). McGraw-Hill.
Chicago Style (17th ed.) CitationKoontz, Harold, and Cyril O'Donnell. Essentials of Management. 2. ed., 1. printing. New York [u.a.]: McGraw-Hill, 1977.
MLA (9th ed.) CitationKoontz, Harold, and Cyril O'Donnell. Essentials of Management. 2. ed., 1. printing. McGraw-Hill, 1977.
Warning: These citations may not always be 100% accurate.