Cita APA (7th ed.)

Hill,Napoleon. (2018). Success principles redicovered. Embassy Book.

Cita Chicago (17th ed.)

Hill,Napoleon. Success Principles Redicovered. Mumbai: Embassy Book, 2018.

Cita MLA (9th ed.)

Hill,Napoleon. Success Principles Redicovered. Embassy Book, 2018.

Atenció: Aquestes cites poden no estar 100% correctes.