HARVARD BUSINESS REVIEW. (1979). CORPORATE STRATEGY. HARVARD BUSINESS REVIEW.
Dyfyniad Arddull ChicagoHARVARD BUSINESS REVIEW. CORPORATE STRATEGY. BOSTON: HARVARD BUSINESS REVIEW, 1979.
Dyfyniad MLAHARVARD BUSINESS REVIEW. CORPORATE STRATEGY. HARVARD BUSINESS REVIEW, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.