christophev,E.M. (1996). Leadership Training. Viva Books.
Chicago-čujuhus (17. p.)christophev,E.M. Leadership Training. Delhi: Viva Books, 1996.
MLA-čujuhus (9. p.)christophev,E.M. Leadership Training. Viva Books, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.