LANCASTER, G. (1993). Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill.
Chicago-referens (17:e uppl.)LANCASTER, Geoffrey. Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill, 1993.
MLA-referens (8:e uppl.)LANCASTER, Geoffrey. Essentials Of Marketing Text And Cases Geoffrey Lancaster And Lester Massingham. McGraw-Hill, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.