APA

Koontz H., O'Donnell C., . (1968). Principles of management: an analysis of managerial functions. New York: McGraw-Hill.

Chicago

Koontz Harold, O'Donnell Cyril, . 1968. Principles of management: an analysis of managerial functions. New York: McGraw-Hill.

Harvard

Koontz H., O'Donnell C., . (1968). Principles of management: an analysis of managerial functions. New York: McGraw-Hill.

MLA

Koontz Harold, O'Donnell Cyril, . Principles of management: an analysis of managerial functions. New York: McGraw-Hill. 1968.