Namita Gopal. (2009). Business environment (2nd.). Tata Mcgraw-Hill.
Chicago Style aipamenaNamita Gopal. Business Environment. 2nd. New Delhi: Tata Mcgraw-Hill, 2009.
MLA aipamenaNamita Gopal. Business Environment. 2nd. Tata Mcgraw-Hill, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.