ARMSTRONG GARY. (1991). MARKETING MANAGEMENT: ANALYSIS; PLANNING; IMPLEMENTATION & CONTROL (7TH.). PRENTICE -HALL INTERNATIONAL; INC.
Chicago-viite (17. p.)ARMSTRONG GARY. MARKETING MANAGEMENT: ANALYSIS; PLANNING; IMPLEMENTATION & CONTROL. 7TH. NEW JERSEY; U.S.A: PRENTICE -HALL INTERNATIONAL; INC, 1991.
MLA-viite (9. p.)ARMSTRONG GARY. MARKETING MANAGEMENT: ANALYSIS; PLANNING; IMPLEMENTATION & CONTROL. 7TH. PRENTICE -HALL INTERNATIONAL; INC, 1991.
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