Dyfyniad APA

Dale Carnegie. (2012). Leadership mastery: How to challenge yourself and others to greatness. Simon & Schuster.

Dyfyniad Arddull Chicago

Dale Carnegie. Leadership Mastery: How to Challenge Yourself and Others to Greatness. London: Simon & Schuster, 2012.

Dyfyniad MLA

Dale Carnegie. Leadership Mastery: How to Challenge Yourself and Others to Greatness. Simon & Schuster, 2012.

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