WATKINS TREVOR. (1986). ECONOMICS OF THE BRAND A MARKETING ANALYSIS. MCGRAW-HILL.
Chicago Style aipamenaWATKINS TREVOR. ECONOMICS OF THE BRAND A MARKETING ANALYSIS. NEW YORK: MCGRAW-HILL, 1986.
MLA aipamenaWATKINS TREVOR. ECONOMICS OF THE BRAND A MARKETING ANALYSIS. MCGRAW-HILL, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.