Kaoru, I. (1968). QC circle activities. Washington: Union of Japanese Scientists and Engineers.
Trích dẫn kiểu ChicagoKaoru, Ishikawa. QC Circle Activities. Washington: Union of Japanese Scientists and Engineers, 1968.
Deismireacht MLAKaoru, Ishikawa. QC Circle Activities. Washington: Union of Japanese Scientists and Engineers, 1968.
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