APA
Bala Subrahmanian M., . (1990). Business communication. New Delhi: Kalyani Publishers.
Chicago
Bala Subrahmanian M, . 1990. Business communication. New Delhi: Kalyani Publishers.
Harvard
Bala Subrahmanian M., . (1990). Business communication. New Delhi: Kalyani Publishers.
MLA
Bala Subrahmanian M, . Business communication. New Delhi: Kalyani Publishers. 1990.