Kotter, J. P. (1999). John P. Kotter On What Leaders Really Do. Harvard Business Review Press.
Chicago-čujuhus (17. p.)Kotter, John P. John P. Kotter On What Leaders Really Do. Boston, Massachesutts: Harvard Business Review Press, 1999.
MLA-čujuhus (9. p.)Kotter, John P. John P. Kotter On What Leaders Really Do. Harvard Business Review Press, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.