HARVARD BUSINESS REVIEW. (1974). CONTROL: PART III. HARVARD BUSINESS REVIEW.
Dyfyniad Arddull ChicagoHARVARD BUSINESS REVIEW. CONTROL: PART III. BOSTON: HARVARD BUSINESS REVIEW, 1974.
Dyfyniad MLAHARVARD BUSINESS REVIEW. CONTROL: PART III. HARVARD BUSINESS REVIEW, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.