HARVARD BUSINESS SCHOOL. (1998). HARVARD BUSINESS REVIEW ON LEADERSHIP. H B S.
Chicago-čujuhus (17. p.)HARVARD BUSINESS SCHOOL. HARVARD BUSINESS REVIEW ON LEADERSHIP. U S A: H B S, 1998.
MLA-čujuhus (9. p.)HARVARD BUSINESS SCHOOL. HARVARD BUSINESS REVIEW ON LEADERSHIP. H B S, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.