Carnegie, D. (2018). How to Win Friends and Influence People. Rupa.
Cita Chicago (17th ed.)Carnegie, Dale. How to Win Friends and Influence People. Rupa, 2018.
Cita MLA (9th ed.)Carnegie, Dale. How to Win Friends and Influence People. Rupa, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.