LANCASTER, G. (1993). Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)LANCASTER, Geoffrey. Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill, 1993.
Lua MLA (8ú heag.)LANCASTER, Geoffrey. Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill, 1993.
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