Ahmad, S., & Ahmad, K. (1990). Business and environment in India. Ashish publication.
Chicago Style aipamenaAhmad, Shamim, and Khaliq Ahmad. Business and Environment in India. New Delhi: Ashish publication, 1990.
MLA aipamenaAhmad, Shamim, and Khaliq Ahmad. Business and Environment in India. Ashish publication, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.