Παραπομπή APA

Tyree, O. (2009). The equation: Applying the 4 indisputable components of business success. John Wiley & Sons.

Παραπομπή Chicago Style

Tyree, Omar. The Equation: Applying the 4 Indisputable Components of Business Success. New Jersey: John Wiley & Sons, 2009.

Παραπομπή MLA

Tyree, Omar. The Equation: Applying the 4 Indisputable Components of Business Success. John Wiley & Sons, 2009.