CATEORA, P. R. (1999). International Marketing/ Philip R. Cateora, John L. Graham. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)CATEORA, Philip R. International Marketing/ Philip R. Cateora, John L. Graham. McGraw-Hill, 1999.
Lua MLA (8ú heag.)CATEORA, Philip R. International Marketing/ Philip R. Cateora, John L. Graham. McGraw-Hill, 1999.
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