Gaya APA

Foster, G. (2007). The Power of Positive Profit : How yuo can improve any bottom line in sales, marketing, and management . United States: Includes the MoneyMath System.

Gaya MLA

Foster, Graham. "The Power of Positive Profit : How yuo can improve any bottom line in sales, marketing, and management". United States: Includes the MoneyMath System, 2007. Text.