LEVITT, T. (1986). The Marketing Imagination/theodore Levitt. The Free.
Lua i Stíl Chicago (17ú heag.)LEVITT, Theodore. The Marketing Imagination/theodore Levitt. The Free, 1986.
Lua MLA (8ú heag.)LEVITT, Theodore. The Marketing Imagination/theodore Levitt. The Free, 1986.
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