APA

Drucker P. F., . (1995). Managing in a time of great change. New York: Truman Talley Books/Dutton.

Chicago

Drucker Peter Ferdinand, . 1995. Managing in a time of great change. New York: Truman Talley Books/Dutton.

Harvard

Drucker P. F., . (1995). Managing in a time of great change. New York: Truman Talley Books/Dutton.

MLA

Drucker Peter Ferdinand, . Managing in a time of great change. New York: Truman Talley Books/Dutton. 1995.