HRADESKY,J.L. (1985). PRODUCTIVITY & QUALITY IMPROVEMENT. MCGRAW HILL.
Chicago-čujuhus (17. p.)HRADESKY,J.L. PRODUCTIVITY & QUALITY IMPROVEMENT. NEW YORK: MCGRAW HILL, 1985.
MLA-čujuhus (9. p.)HRADESKY,J.L. PRODUCTIVITY & QUALITY IMPROVEMENT. MCGRAW HILL, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.