Madhukar, R. (2012). Business Commuincation (2nd.). Vikas Publishing House.
Citazione stile Chigago Style (17a edizione)Madhukar, R.K. Business Commuincation. 2nd. Noida: Vikas Publishing House, 2012.
Citatione MLA (9a ed.)Madhukar, R.K. Business Commuincation. 2nd. Vikas Publishing House, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.