Heifetz, R. A. (1994). Leadership without easy answers. HUP.
Chicago-čujuhus (17. p.)Heifetz, Ronald A. Leadership Without Easy Answers. London: HUP, 1994.
MLA-čujuhus (9. p.)Heifetz, Ronald A. Leadership Without Easy Answers. HUP, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.