Hutchins, D. (1985). Quality circles handbook. New York, NY: Nichols.
Trích dẫn kiểu ChicagoHutchins, David. Quality Circles Handbook. New York, NY: Nichols, 1985.
MLA引文Hutchins, David. Quality Circles Handbook. New York, NY: Nichols, 1985.
警告:这些引文格式不一定是100%准确.