APA (7th ed.) Citation

Cohen, W. A. (1990). The art of the leader (2. print.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Cohen, William A. The Art of the Leader. 2. print. Englewood Cliffs, NJ [u.a.]: Prentice-Hall, 1990.

MLA (9th ed.) Citation

Cohen, William A. The Art of the Leader. 2. print. Prentice-Hall, 1990.