Cita APA (7a ed.)

Books24x7, Inc, & Cohen, W. A. (2013). Drucker on marketing: Lessons from the world's most influential business thinker (1st edition.). McGraw-Hill Education.

Cita Chicago Style (17a ed.)

Books24x7, Inc, y William A. Cohen. Drucker on Marketing: Lessons from the World's Most Influential Business Thinker. 1st edition. New York: McGraw-Hill Education, 2013.

Cita MLA (9a ed.)

Books24x7, Inc, y William A. Cohen. Drucker on Marketing: Lessons from the World's Most Influential Business Thinker. 1st edition. McGraw-Hill Education, 2013.