Keegan, W. J. (1974). Multinational marketing management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Keegan, Warren J. Multinational Marketing Management. Englewood Cliffs, N.J: Prentice-Hall, 1974.
Lua MLA (8ú heag.)Keegan, Warren J. Multinational Marketing Management. Prentice-Hall, 1974.
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