APA-Zitierstil (7. Ausg.)

Sharp, I. (2009). Four Seasons: The story of a business philosophy. Portfolio.

Chicago-Zitierstil (17. Ausg.)

Sharp, Isadore. Four Seasons: The Story of a Business Philosophy. New York, NY: Portfolio, 2009.

MLA-Zitierstil (9. Ausg.)

Sharp, Isadore. Four Seasons: The Story of a Business Philosophy. Portfolio, 2009.