Cita APA (7th ed.)

Cole,Brent. How to win friends and influence people in the digital age. Simon & Schuster.

Cita Chicago (17th ed.)

Cole,Brent. How to Win Friends and Influence People in the Digital Age. Simon & Schuster.

Cita MLA (8th ed.)

Cole,Brent. How to Win Friends and Influence People in the Digital Age. Simon & Schuster.

Atenció: Aquestes cites poden no estar 100% correctes.