HARVARD BUSINESS REVIEW. (1979). CORPORATE STRATEGY. HARVARD BUSINESS REVIEW.
Lua i Stíl Chicago (17ú heag.)HARVARD BUSINESS REVIEW. CORPORATE STRATEGY. BOSTON: HARVARD BUSINESS REVIEW, 1979.
Lua MLA (9ú heag.)HARVARD BUSINESS REVIEW. CORPORATE STRATEGY. HARVARD BUSINESS REVIEW, 1979.
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