AFT LAWRENCE S. (1985). PRODUCTIVITY MEASUREMANT & IMPROVEMENT. RESTON PUBLISHERS.
Chicago-čujuhus (17. p.)AFT LAWRENCE S. PRODUCTIVITY MEASUREMANT & IMPROVEMENT. VIRGINIA: RESTON PUBLISHERS, 1985.
MLA-čujuhus (9. p.)AFT LAWRENCE S. PRODUCTIVITY MEASUREMANT & IMPROVEMENT. RESTON PUBLISHERS, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.