Lua APA (7ú heag.)

ARMSTRONG GARY. (1993). MARKETING: AN INTRODUCTION ANNOTATED (3RD.). PRENTICE -HALL INTERNATIONAL; INC.

Lua i Stíl Chicago (17ú heag.)

ARMSTRONG GARY. MARKETING: AN INTRODUCTION ANNOTATED. 3RD. NEW JERSEY; U.S.A: PRENTICE -HALL INTERNATIONAL; INC, 1993.

Lua MLA (9ú heag.)

ARMSTRONG GARY. MARKETING: AN INTRODUCTION ANNOTATED. 3RD. PRENTICE -HALL INTERNATIONAL; INC, 1993.

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