Ray, M. L. (1982). Advertising and communication management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Ray, Michael L. Advertising and Communication Management. Englewood Cliffs, NJ: Prentice-Hall, 1982.
Lua MLA (9ú heag.)Ray, Michael L. Advertising and Communication Management. Prentice-Hall, 1982.
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