Leatherman Richard W. (2010). Employee Development DVD Series. HRD Press.
Chicago-čujuhus (17. p.)Leatherman Richard W. Employee Development DVD Series. HRD Press, 2010.
MLA-čujuhus (9. p.)Leatherman Richard W. Employee Development DVD Series. HRD Press, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.