Singh K V. From Coins To Credit Cards. National Book Trust.
Citazione stile Chigago Style (17a edizione)Singh K V. From Coins To Credit Cards. 2011 2011: National Book Trust.
Citatione MLA (9a ed.)Singh K V. From Coins To Credit Cards. National Book Trust.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.