Lua APA (7ú heag.)

YOFFIE DAVID B. (1993). BEYOND FREE TRADE: FIRMS GOVTS. GLOBAL COMPETITION. HARVARD BUSINESS REVIEW SCHOOL.

Lua i Stíl Chicago (17ú heag.)

YOFFIE DAVID B. BEYOND FREE TRADE: FIRMS GOVTS. GLOBAL COMPETITION. BOSTON: HARVARD BUSINESS REVIEW SCHOOL, 1993.

Lua MLA (9ú heag.)

YOFFIE DAVID B. BEYOND FREE TRADE: FIRMS GOVTS. GLOBAL COMPETITION. HARVARD BUSINESS REVIEW SCHOOL, 1993.

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