Roy, R. N. (2005). A Modern Approach to Operations Management. New Age International.
Chicago-čujuhus (17. p.)Roy, Ram Naresh. A Modern Approach to Operations Management. New Delhi: New Age International, 2005.
MLA-čujuhus (9. p.)Roy, Ram Naresh. A Modern Approach to Operations Management. New Age International, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.