Dyfyniad APA

 Kressel, H. (2015).  If you really want to change the world: A guide to creating, building, and sustaining breakthrough ventures.  Harvard Business Review Press.

Dyfyniad Arddull Chicago

 Kressel, Henry.  If You Really Want to Change the World: A Guide to Creating, Building, and Sustaining Breakthrough Ventures.  Harvard Business Review Press, 2015.

Dyfyniad MLA

 Kressel, Henry.  If You Really Want to Change the World: A Guide to Creating, Building, and Sustaining Breakthrough Ventures.  Harvard Business Review Press, 2015.

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