APA (7th ed.) Citation

Beatty, J. (1998). The world according to Peter Drucker. Free Press.

Chicago Style (17th ed.) Citation

Beatty, Jack. The World According to Peter Drucker. New York [etc.]: Free Press, 1998.

MLA (9th ed.) Citation

Beatty, Jack. The World According to Peter Drucker. Free Press, 1998.

Warning: These citations may not always be 100% accurate.