APA (7th ed.) Citation
Drucker, P. F. (1967). The effective executive. Harper & Row, Publishers.
Chicago Style (17th ed.) Citation
Drucker, Peter F. The Effective Executive. New York: Harper & Row, Publishers, 1967.
MLA (9th ed.) Citation
Drucker, Peter F. The Effective Executive. Harper & Row, Publishers, 1967.
Warning: These citations may not always be 100% accurate.