Powell, G. R. (2008). Marketing calculator: Measuring and managing return on marketing investment. John Wiley & Sons (Asia).
Chicago Style (17th ed.) CitationPowell, Guy R. Marketing Calculator: Measuring and Managing Return on Marketing Investment. Singapore ; Hoboken, NJ: John Wiley & Sons (Asia), 2008.
ציטוט MLAPowell, Guy R. Marketing Calculator: Measuring and Managing Return on Marketing Investment. John Wiley & Sons (Asia), 2008.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.