Cita APA (7th ed.)

Koch, C. G. (2007). The Science of Success (13th.). Prentice-Hall of India Pvt. Ltd.

Cita Chicago (17th ed.)

Koch, Charles G. The Science of Success. 13th. New Delhi: Prentice-Hall of India Pvt. Ltd, 2007.

Cita MLA (9th ed.)

Koch, Charles G. The Science of Success. 13th. Prentice-Hall of India Pvt. Ltd, 2007.