Oldcorn, R. (1989). Management skils and functions. Rupa.
Chicago-čujuhus (17. p.)Oldcorn, Roger. Management Skils and Functions. London: Rupa, 1989.
MLA-čujuhus (9. p.)Oldcorn, Roger. Management Skils and Functions. Rupa, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.