Peter, J. P., & Donnelly, J. H. (2008). A preface to marketing management (11th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Peter, J Paul, agus James H. Donnelly. A Preface to Marketing Management. 11th ed. Boston: McGraw-Hill, 2008.
Lua MLA (9ú heag.)Peter, J Paul, agus James H. Donnelly. A Preface to Marketing Management. 11th ed. McGraw-Hill, 2008.
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