Dyfyniad APA

Carroll, P. (2008). Billion dollar lessons: What you can learn from the most inexcusable business failures of the last twenty-five years (NA.). Penguin Group.

Dyfyniad Arddull Chicago

Carroll, Paul. Billion Dollar Lessons: What You Can Learn from the Most Inexcusable Business Failures of the Last Twenty-five Years. NA. USA: Penguin Group, 2008.

Dyfyniad MLA

Carroll, Paul. Billion Dollar Lessons: What You Can Learn from the Most Inexcusable Business Failures of the Last Twenty-five Years. NA. Penguin Group, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.