CHOPRA KIRAN. (1988). COST REDUCTION. AMAR PRAKASHAN.
Chicago-čujuhus (17. p.)CHOPRA KIRAN. COST REDUCTION. NEW DELHI: AMAR PRAKASHAN, 1988.
MLA-čujuhus (9. p.)CHOPRA KIRAN. COST REDUCTION. AMAR PRAKASHAN, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.