Magretta, J. (2007). What management is. Protile Books.
Chicago-čujuhus (17. p.)Magretta, John. What Management Is. London: Protile Books, 2007.
MLA-čujuhus (9. p.)Magretta, John. What Management Is. Protile Books, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.