SETHI SUBHASH C. (2003). TWENTY FIVE MINUTES TO ENHANCE YOUR PERFORMANCE. INDIANA BOOKS.
Citazione stile Chigago Style (17a edizione)SETHI SUBHASH C. TWENTY FIVE MINUTES TO ENHANCE YOUR PERFORMANCE. NEW DELHI: INDIANA BOOKS, 2003.
Citatione MLA (9a ed.)SETHI SUBHASH C. TWENTY FIVE MINUTES TO ENHANCE YOUR PERFORMANCE. INDIANA BOOKS, 2003.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.