Zukar,Elaina. (2015). Seven secrets of influence. Jaico Books.
Cita Chicago (17th ed.)Zukar,Elaina. Seven Secrets of Influence. Mumbai: Jaico Books, 2015.
Cita MLA (9th ed.)Zukar,Elaina. Seven Secrets of Influence. Jaico Books, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.