Lua APA (7ú heag.)
Foster, G. (2007). The power of positive profit: How you can improve any bottom line in sales, marketing, and management with MoneyMath. Wiley.
Lua i Stíl Chicago (17ú heag.)
Foster, Graham. The Power of Positive Profit: How You Can Improve Any Bottom Line in Sales, Marketing, and Management with MoneyMath. Hoboken, N.J.: Wiley, 2007.
Lua MLA (9ú heag.)
Foster, Graham. The Power of Positive Profit: How You Can Improve Any Bottom Line in Sales, Marketing, and Management with MoneyMath. Wiley, 2007.
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