Lua APA (7ú heag.)

Hepner, H. W. (1949). Effective advertising. McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Hepner, Harry Walker. Effective Advertising. New York: McGraw-Hill, 1949.

Lua MLA (9ú heag.)

Hepner, Harry Walker. Effective Advertising. McGraw-Hill, 1949.

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