GILES, G. B. (1966). Marketing Management G. B. Giles. MacDonald & Evans.
Lua i Stíl Chicago (17ú heag.)GILES, G. B. Marketing Management G. B. Giles. MacDonald & Evans, 1966.
Lua MLA (8ú heag.)GILES, G. B. Marketing Management G. B. Giles. MacDonald & Evans, 1966.
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