Cita APA (7th ed.)
Akinyemi, W. (2015). Secrets of the billionaire within. PowerTalks.
Cita Chicago (17th ed.)
Akinyemi, Wale. Secrets of the Billionaire Within. Nairobi: PowerTalks, 2015.
Cita MLA (9th ed.)
Akinyemi, Wale. Secrets of the Billionaire Within. PowerTalks, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.