Gaya APA

Lieberman, D, J. (2009). Executive power: use the greatest colection of psychological strategies to create an automatic advantages in any business situation . New Jersey: John Wiley n Sons.

Gaya MLA

Lieberman, David, J.. "Executive power: use the greatest colection of psychological strategies to create an automatic advantages in any business situation". New Jersey: John Wiley n Sons, 2009. Textbook.