SETHI SUBHASH C. (2003). TWENTY FIVE MINUTES TO ENHANCE YOUR MOTIVATION. INDIANA BOOKS.
Cita Chicago (17th ed.)SETHI SUBHASH C. TWENTY FIVE MINUTES TO ENHANCE YOUR MOTIVATION. NEW DELHI: INDIANA BOOKS, 2003.
Cita MLA (9th ed.)SETHI SUBHASH C. TWENTY FIVE MINUTES TO ENHANCE YOUR MOTIVATION. INDIANA BOOKS, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.