Crocker, O. L. (1984). Quality circles: A guide to participation and productivity. New York, N.Y: Facts on File Publications.
Dyfyniad Arddull ChicagoCrocker, Olga L. Quality Circles: A Guide to Participation and Productivity. New York, N.Y: Facts on File Publications, 1984.
Dyfyniad MLACrocker, Olga L. Quality Circles: A Guide to Participation and Productivity. New York, N.Y: Facts on File Publications, 1984.
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