Cita APA (7a ed.)
National Productivity Council (India). Productivity. National Productivity Council.
Cita Chicago Style (17a ed.)
National Productivity Council (India). Productivity. New Delhi: National Productivity Council.
Cita MLA (9a ed.)
National Productivity Council (India). Productivity. National Productivity Council.
Precaución: Estas citas no son 100% exactas.