Kressel, H. &. W. (2015). If you really want to change the world. Harward Business Review Press.
Chicago-čujuhus (17. p.)Kressel, Henry & Winarsky. If You Really Want to Change the World. Boston: Harward Business Review Press, 2015.
MLA-čujuhus (9. p.)Kressel, Henry & Winarsky. If You Really Want to Change the World. Harward Business Review Press, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.