Παραπομπή APA

 Foster, G. (2007).  The power of positive profit: How you can improve any bottom line in sales, marketing, and management with MoneyMath.  John Wiley & Sons.

Παραπομπή Chicago Style

 Foster, Graham.  The Power of Positive Profit: How You Can Improve Any Bottom Line in Sales, Marketing, and Management With MoneyMath.  John Wiley & Sons, 2007.

Παραπομπή MLA

 Foster, Graham.  The Power of Positive Profit: How You Can Improve Any Bottom Line in Sales, Marketing, and Management With MoneyMath.  John Wiley & Sons, 2007.

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